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Cesar Ferreira
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204
library/src/main/java/com/cesarferreira/library/Pluralize.kt
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204
library/src/main/java/com/cesarferreira/library/Pluralize.kt
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package com.cesarferreira.library
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import com.cesarferreira.library.utils.Plurality
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import java.util.regex.Pattern
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fun String.pluralize(plurality: Plurality = Plurality.Singular): String {
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if (plurality == Plurality.Plural) return this
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if (plurality == Plurality.Singular)
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return this.pluralizer()
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if (this.singularizer() != this && this.singularizer() + "s" != this &&
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this.singularizer().pluralizer() == this && this.pluralizer() != this)
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return this
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return this.pluralizer()
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}
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fun String.singularize(plurality: Plurality = Plurality.Plural): String {
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if (plurality == Plurality.Singular) return this
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if (plurality == Plurality.Plural) return this.singularizer()
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if (this.pluralizer() != this && this + "s" != this.pluralizer() &&
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this.pluralizer().singularize() == this && this.singularizer() != this)
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return this;
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return this.singularize()
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}
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private fun String.pluralizer(): String {
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if (unCountable().contains(this)) return this
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val rule = pluralizeRules().last { Pattern.compile(it.component1(), Pattern.CASE_INSENSITIVE).matcher(this).find() }
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var found = Pattern.compile(rule.component1(), Pattern.CASE_INSENSITIVE).matcher(this).replaceAll(rule.component2())
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val endswith = exceptions().firstOrNull { this.endsWith(it.component1()) }
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if (endswith != null) found = this.replace(endswith.component1(), endswith.component2())
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val excep = exceptions().firstOrNull() { this.equals(it.component1()) }
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if (excep != null) found = excep.component2()
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return found
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}
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private fun String.singularizer(): String {
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if (unCountable().contains(this)) {
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return this
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}
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val excepions = exceptions().firstOrNull() { this.equals(it.component2()) }
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if (excepions != null) {
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return excepions.component1()
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}
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val endswith = exceptions().firstOrNull { this.endsWith(it.component2()) }
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if (endswith != null) return this.replace(endswith.component2(), endswith.component1())
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try {
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if (singularizeRules().count {
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Pattern.compile(it.component1(), Pattern.CASE_INSENSITIVE).matcher(this).find()
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} == 0) return this
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val rule = singularizeRules().last {
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Pattern.compile(it.component1(), Pattern.CASE_INSENSITIVE).matcher(this).find()
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}
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return Pattern.compile(rule.component1(), Pattern.CASE_INSENSITIVE).matcher(this).replaceAll(rule.component2())
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} catch(ex: IllegalArgumentException) {
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Exception("Can't singularize this word, could not find a rule to match.")
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}
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return this
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}
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fun unCountable(): List<String> {
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return listOf("equipment", "information", "rice", "money",
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"species", "series", "fish", "sheep", "aircraft", "bison",
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"flounder", "pliers", "bream",
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"gallows", "proceedings", "breeches", "graffiti", "rabies",
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"britches", "headquarters", "salmon", "carp", "herpes",
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"scissors", "chassis", "high-jinks", "sea-bass", "clippers",
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"homework", "cod", "innings", "shears",
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"contretemps", "jackanapes", "corps", "mackerel",
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"swine", "debris", "measles", "trout", "diabetes", "mews",
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"tuna", "djinn", "mumps", "whiting", "eland", "news",
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"wildebeest", "elk", "pincers", "sugar")
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}
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fun exceptions(): List<Pair<String, String>> {
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return listOf("person" to "people",
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"man" to "men",
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"goose" to "geese",
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"child" to "children",
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"sex" to "sexes",
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"move" to "moves",
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"stadium" to "stadiums",
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"deer" to "deer",
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"codex" to "codices",
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"murex" to "murices",
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"silex" to "silices",
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"radix" to "radices",
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"helix" to "helices",
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"alumna" to "alumnae",
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"alga" to "algae",
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"vertebra" to "vertebrae",
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"persona" to "personae",
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"stamen" to "stamina",
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"foramen" to "foramina",
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"lumen" to "lumina",
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"afreet" to "afreeti",
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"afrit" to "afriti",
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"efreet" to "efreeti",
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"cherub" to "cherubim",
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"goy" to "goyim",
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"human" to "humans",
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"lumen" to "lumina",
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"seraph" to "seraphim",
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"Alabaman" to "Alabamans",
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"Bahaman" to "Bahamans",
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"Burman" to "Burmans",
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"German" to "Germans",
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"Hiroshiman" to "Hiroshimans",
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"Liman" to "Limans",
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"Nakayaman" to "Nakayamans",
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"Oklahoman" to "Oklahomans",
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"Panaman" to "Panamans",
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"Selman" to "Selmans",
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"Sonaman" to "Sonamans",
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"Tacoman" to "Tacomans",
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"Yakiman" to "Yakimans",
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"Yokohaman" to "Yokohamans",
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"Yuman" to "Yumans", "criterion" to "criteria",
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"perihelion" to "perihelia",
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"aphelion" to "aphelia",
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"phenomenon" to "phenomena",
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"prolegomenon" to "prolegomena",
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"noumenon" to "noumena",
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"organon" to "organa",
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"asyndeton" to "asyndeta",
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"hyperbaton" to "hyperbata")
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}
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fun pluralizeRules(): List<Pair<String, String>> {
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return listOf(
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"$" to "s",
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"s$" to "s",
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"(ax|test)is$" to "$1es",
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"us$" to "i",
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"(octop|vir)us$" to "$1i",
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"(octop|vir)i$" to "$1i",
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"(alias|status)$" to "$1es",
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"(bu)s$" to "$1ses",
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"(buffal|tomat)o$" to "$1oes",
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"([ti])um$" to "$1a",
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"([ti])a$" to "$1a",
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"sis$" to "ses",
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"(,:([^f])fe|([lr])f)$" to "$1$2ves",
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"(hive)$" to "$1s",
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"([^aeiouy]|qu)y$" to "$1ies",
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"(x|ch|ss|sh)$" to "$1es",
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"(matr|vert|ind)ix|ex$" to "$1ices",
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"([m|l])ouse$" to "$1ice",
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"([m|l])ice$" to "$1ice",
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"^(ox)$" to "$1en",
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"(quiz)$" to "$1zes",
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"f$" to "ves",
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"fe$" to "ves",
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"um$" to "a",
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"on$" to "a")
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}
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fun singularizeRules(): List<Pair<String, String>> {
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return listOf(
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"s$" to "",
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"(s|si|u)s$" to "$1s",
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"(n)ews$" to "$1ews",
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"([ti])a$" to "$1um",
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"((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$" to "$1$2sis",
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"(^analy)ses$" to "$1sis",
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"(^analy)sis$" to "$1sis",
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"([^f])ves$" to "$1fe",
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"(hive)s$" to "$1",
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"(tive)s$" to "$1",
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"([lr])ves$" to "$1f",
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"([^aeiouy]|qu)ies$" to "$1y",
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"(s)eries$" to "$1eries",
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"(m)ovies$" to "$1ovie",
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"(x|ch|ss|sh)es$" to "$1",
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"([m|l])ice$" to "$1ouse",
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"(bus)es$" to "$1",
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"(o)es$" to "$1",
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"(shoe)s$" to "$1",
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"(cris|ax|test)is$" to "$1is",
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"(cris|ax|test)es$" to "$1is",
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"(octop|vir)i$" to "$1us",
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"(octop|vir)us$" to "$1us",
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"(alias|status)es$" to "$1",
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"(alias|status)$" to "$1",
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"^(ox)en" to "$1",
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"(vert|ind)ices$" to "$1ex",
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"(matr)ices$" to "$1ix",
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"(quiz)zes$" to "$1",
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"a$" to "um",
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"i$" to "us",
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"ae$" to "a")
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}
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