rtce rtee rtle rtlt tbcb tbcc tbce tbrb tccc tctc tebo teck tecl teco tecr tect teec teek teel teer teet teke tel- telc tele tell telo telt teok teor ter- terc tere terk tero terr tete teto tetr tett tkol tlco tobe tobo tobt toce tock toco toee toek toer toet toke toko tol- tole tolk toll tolo tolt took tool toor toot torc tore tork toro torr tort totc tote toto totr tott trcc trcl tre- trec tree trek treo tret troc troe troo trot trtc trte trtr ttbb tteo tter ttoe tttt