aaaa aaar aaoo aara aaro aart aata aatt aora aort arar arat aroa aroo aror arr- arra arro arrr arrt arta arto artr at-t ataa atar atat ator atot atra atro atta atto attr oara ooaa oooo oora oort orao orar orat oro- oror orot orra orro orta orto otar oto- otoo otor otra otro otta otto raat rara raro rata rato ratt roar roat roor root rora roro rort rota roto rotr rott rrat rrrr taa- taar taat taoa taor tara taro tarr tart tata tato tatr tatt toat tooa toor toot tora toro torr tort tota toto totr tott traa trao trat troa troo trot trra trtr tttt