tart tata tatb tath tato tatr tatt tbar tbca tbcb tbcc tbrb tbta tcca tccc tch- tcha tchh tcho tchr tcnn tcon tctc thaa than thao thar that thca thch thnt thon thoo thor thot thra thro thtb thtr tnbc tnca tncc toab toan toat toba tobo tobt toca toch toco toho tona tonb tonh tonn tono tooa tooh toon toor toot tora torc torn toro torr tort tota totc toth toto totr tott traa trab trac tran trao trat trca trcc trna trno troa troc tron troo trot trra trtc trtr ttab ttbb ttcn tton tttt