ppi ppl ppn ppo ppp ppr prc pre prg prh pri prl prn pro prp prr pry py- pyc pye pyg pyl pyn pyo pyr rcc rce rcg rch rci rcl rcn rco rcp rcr re- rec ree reg reh rei rel ren reo rep rer rey rgc rge rgg rgh rgi rgn rgo rgp rgr rh- rhc rhe rhg rhh rhi rhl rhn rho rhp rhr ric rie rig rih rii ril rin rio rip rir riy rlc rle rlg rlh rli rll rln rlo rlp rlr rly rnc rng rnh rni rnn rno rnp rnr rny roc roe rog roh roi rol ron roo rop ror roy rpc rpe rpg rph rpi rpl rpn rpo rpp rpr rrc rrg rrh rri rrl rrn rrp rrr ry- ryc rye ryg ryn ryo ryr ryy ycc yce ych yci ycl yco ycp ycy yec yee yeg yeh yei yel yen yeo yep yer yey ygc ygl ygo yhc yhe yhi yie yig yih yii yin yio yip yir ylc yle ylg yli yll ylr yly yne yng ynn ynp yny yoc yoe yog yoi yol yon yoo yop yor yoy ypg ypl ypo yrc yre yrg yrn yro yrp yyc yye yyg yyy