root ropa ropo rora rori roro rort rota roth roti rotn roto rotr rott rpho rpii rpon rppn rpta rptn rrah rrat rrna rrrr rtai rtan rtpa rttp taa- taan taar taat taha tahi tahn taho tahr taia tain taio taip tair tait tana tanh tani tann tano tant taoa taor tapa tapi tapo tapp tapr tapt tara tari tarn taro tarp tarr tart tata tath tati tato tatr tatt thaa thai than thao thar that thhp thi- thia thin thio thir thnt thon thoo thor thot thpp thra thri thro thtr tiaa tian tiao tiar tiht tiit tina tini tinn tino tint tion tiop tip- tipa tipi tipo tipp tipt tira tiri tiro tirr tita tith titi tito titp titt toan toat tohi toho toit tona tonh toni tonn tono tooa tooh toon toor toot top- topa toph topi topo topp topt tora tori torn toro torp torr tort tota toth toti toto totr tott tpap tpia tpir tpon tppa tppp tppr tptp tptr traa trai tran trao trap trat tri- tria trin trio trip trit trna trno troa troi tron troo trop trot trpa trpn trpp trra trtr tton ttop tttt