pna pnb pnc pnh pni pnl pnn pno pnp pnr pny poa pob poc poh poi pol pon poo pop por poy ppa ppb ppc pph ppi ppl ppn ppo ppp ppr pra prb prc prh pri prl prn pro prp prr pry py- pya pyb pyc pyl pyn pyo pyr ra- raa rab rac rah rai ral ran rao rap rar ray rba rbb rbc rbh rbi rbl rbn rbo rbp rbr rca rcb rcc rch rci rcl rcn rco rcp rcr rh- rha rhb rhc rhh rhi rhl rhn rho rhp rhr ria rib ric rih rii ril rin rio rip rir riy rla rlc rlh rli rll rln rlo rlp rlr rly rna rnb rnc rnh rni rnn rno rnp rnr rny roa rob roc roh roi rol ron roo rop ror roy rpa rpb rpc rph rpi rpl rpn rpo rpp rpr rra rrb rrc rrh rri rrl rrn rrp rrr ry- rya ryc ryn ryo ryr ryy yaa yab yac yah yai yal yan yao yap yar yay ybc ybi ybl ybp ybr yby yca ycc ych yci ycl yco ycp ycy yha yhc yhi yih yii yin yio yip yir ylc yli yll ylr yly yna ynn ynp yny yob yoc yoi yol yon yoo yop yor yoy ypa ypl ypo yra yrc yrn yro yrp yyb yyc yyy