wiki.techinc.nl/languages/classes/LanguageSgs.php

<?php
/** Samogitian (Žemaitėška)
 *
 * @ingroup Language
 *
 * @author Niklas Laxström
 */
class LanguageSgs extends Language {

	/**
	 * @param $count int
	 * @param $forms array
	 * @return string
	 */
	function convertPlural( $count, $forms ) {
		if ( !count( $forms ) ) { return ''; }
		$forms = $this->preConvertPlural( $forms, 4 );

		$count = abs( $count );
		if ( $count === 0 || ( $count % 100 === 0 || ( $count % 100 >= 10 && $count % 100 < 20 ) ) ) {
			return $forms[2];
		} elseif ( $count % 10 === 1 ) {
			return $forms[0];
		} elseif ( $count % 10 === 2 ) {
			return $forms[1];
		} else {
			return $forms[3];
		}
	}
}