rol ron roo rop ror rot roy rpa rpc rpg rph rpl rpn rpo rpp rpr rpt rra rrc rrg rrh rrl rrn rrp rrr rrt rta rtc rtg rtl rtn rto rtp rtr rtt rty ry- rya ryc ryg ryn ryo ryr ryy taa tac tag tah tal tan tao tap tar tat tay tca tcc tcg tch tcl tcn tco tcp tcr tct tga tgc tgg tgh tgl tgn tgo tgp tgr tgt tgy th- tha thc thg thh thl thn tho thp thr tht thy tla tlc tlg tlh tll tln tlo tlp tlr tlt tna tnc tng tnh tnl tnn tno tnp tnr tnt to- toa toc tog toh tol ton too top tor tot toy tpa tpc tpg tph tpl tpn tpo tpp tpr tpt tra trc trg trh trl trn tro trp trr trt try tta ttc ttg tth ttl ttn tto ttp ttr ttt tty tya tyc tyg tyl tyn tyo typ tyr tyt yaa yac yag yah yal yan yao yap yar yat yay yca ycc ych ycl yco ycp ycy yga ygc ygl ygo yha yhc yht ylc ylg yll ylr ylt yly yna yng ynn ynp yny yoc yog yol yon yoo yop yor yot yoy ypa ypg ypl ypo yra yrc yrg yrn yro yrp yrt yta ytc yth ytl ytn yto ytp ytr ytt yyc yyg yyt yyy