ppo ppp ppr prb pre prg prh pri prl prm pro prp prr pry py- pyb pye pyg pyl pym pyo pyr rbb rbe rbg rbh rbi rbl rbm rbo rbp rbr re- reb ree reg reh rei rel rem reo rep rer rey rgb rge rgg rgh rgi rgo rgp rgr rh- rhb rhe rhg rhh rhi rhl rhm rho rhp rhr rib rie rig rih rii ril rim rio rip rir riy rle rlg rlh rli rll rlm rlo rlp rlr rly rmb rme rmg rmh rmi rml rmm rmo rmp rmr rob roe rog roh roi rol rom roo rop ror roy rpb rpe rpg rph rpi rpl rpm rpo rpp rpr rrb rrg rrh rri rrl rrm rrp rrr ry- rye ryg rym ryo ryr ryy ybe ybg ybi ybl ybm ybp ybr yby yeb yee yeg yeh yei yel yem yeo yep yer yey ygl ygm ygo yhe yhi yie yig yih yii yim yio yip yir yle ylg yli yll ylm ylr yly yme ymg ymi yml ymm ymo yob yoe yog yoi yol yom yoo yop yor yoy ypg ypl ypo yre yrg yro yrp yyb yye yyg yyy