"Based on such RNA studies, Carl Woese thought life could be divided into three large divisions and referred to them as the ""three primary kingdom"" model or ""urkingdom"" model."
“ Tiɣir ijjanen fal RNA chund wen, Carl Woese aɣil tamudre taddobat a taqqil tizunawen karadat maqqornen tolas eɣren s dumu wan“Three Primary Kingdom” meɣ s dumu wan “urkingdom””