rrrr rtcc rtce rtcg rtee rtei rtle rtlt tbcb tbcc tbce tbil tbit tbrb tccc tcnn tcon tctc tebo tecl teco tecr tect teec teel teen teer teet tegg tegi tego tegt teic teie teil tein teir tel- telc tele telg teli tell teln telo telt tenb tenc tene teng teni tenn teno tent teon teor ter- terc tere teri tern tero terr tete teti teto tetr tett tgcc tgel tgle tgtc tibi ticc tice tico tie- tiee tiei tiel tien tieo tier tiet tige tigi tigr tiit tile till tiln tilo tilr tilt tinc tine ting tini tinn tino tint tion tirb tire tiri tirl tiro tirr titc tite titi tito titt tlco tlen tlgc tlli tlon tnbc tncc tneb tnge tobe tobi tobo tobt toce toci toco toee toei toen toer toet toge togo togr togt toie toil toit tol- tole toli toll tolo tolt tonb tone tong toni tonn tono tool toon toor toot torc tore torg tori torn toro torr tort totc tote toti toto totr tott trcc trcl tre- trec tree treg trei tren treo tret trge tri- trib tric trie trig tril trin trio trit trng trno troc troe trog troi tron troo trot trtc trte trtr ttbb ttcn tten tteo tter ttoe tton tttt