rorc rori roro rort rotc roth roti rotl rotn roto rotr rott rrfc rrif rrrr rtcc rtfc rtlt tccc tcfc tch- tchh tchi tcho tchr tcnn tcon tctc tfin tfot tftc thch thi- thic thif thil thin thio thir thnt thof thon thoo thor thot thri thro thtr ticc tich tico tiff tifo tift tiht tiit tilh till tiln tilo tilr tilt tinc tini tinn tino tint tion tiri tirl tiro tirr titc tith titi tito titt tlco tlli tlon tncc tnfc tnfl toch toci toco toff tofi tofo toft tohi toho toil toit tol- toli toll tolo tolt tonh toni tonn tono toof tooh tool toon toor toot torc torf tori torn toro torr tort totc toth toti toto totr tott trcc trcl trfc trfr tri- tric trif tril trin trio trit trno troc troi tron troo trot trtc trtr ttcn ttfc ttff ttfn tton tttt