/**
  * Sets array of words which must be checked before building seo url
  * These words are appended by seo prefix if they are the initial uri segment
  *
  * @param array $aReservedWords reserved words
  *
  * @return null
  */
 public function setReservedWords($aReservedWords)
 {
     self::$_aReservedWords = array_merge(self::$_aReservedWords, $aReservedWords);
 }