prr pry py- pya pyc pyd pyk pyn pyo pyr ra- raa rac rad rah rai rak ran rao rap rar ray rca rcc rcd rch rci rcn rco rcp rcr rda rdc rdd rdh rdi rdn rdo rdp rdr rdy rh- rha rhc rhd rhh rhi rhn rho rhp rhr ria ric rid rih rii rik rin rio rip rir riy rkc rkk rko rkp rky rna rnc rnd rnh rni rnn rno rnp rnr rny roa roc rod roh roi rok ron roo rop ror roy rpa rpc rpd rph rpi rpk rpn rpo rpp rpr rra rrc rrd rrh rri rrk rrn rrp rrr ry- rya ryc ryd ryk ryn ryo ryr ryy yaa yac yad yah yai yak yan yao yap yar yay yca ycc ycd ych yci yco ycp ycy yda ydn ydo ydy yha yhc yhi yid yih yii yin yio yip yir yka yki ykk ykn yna ynd ynk ynn ynp yny yoc yod yoi yok yon yoo yop yor yoy ypa ypd ypo yra yrc yrn yro yrp yyc yyy