tetr tett thaa thae thai thak than thar that thca thch the- thea thec thee thei thek then ther thet thi- thia thic thie thik thin thir thnk thnt thra thre thri thtr tiaa tian tiar tica ticc tice tich tick tie- tiea tiee tiei tien tier tiet tiht tiit tika tike tiki tina tinc tine tini tink tinn tint tira tire tiri tirr tita titc tite tith titi titt tkac tnca tncc tnik traa trac trae trai trak tran trat trca trcc tre- trea trec tree trei trek tren tret tri- tria tric trie trik trin trit trna trra trtc trte trtr ttcn tten tter tttt