ohr oia oib oic oie oii oil oim oio oir ola olb olc ole oli oll olm olo oly om- oma omb omc ome omh omi oml omm omo omr omy oo- ooa oob ooc ooh ooi ool oom ooo oor or- ora orb orc ore orh ori orl orm oro orr ory oya oye oyi oyl oyo ra- raa rab rac rae rah rai ral ram rao rar ray rba rbb rbc rbe rbh rbi rbl rbm rbo rbr rca rcb rcc rce rch rci rcl rcm rco rcr re- rea reb rec ree reh rei rel rem reo rer rey rh- rha rhb rhc rhe rhh rhi rhl rhm rho rhr ria rib ric rie rih rii ril rim rio rir riy rla rlc rle rlh rli rll rlm rlo rlr rly rma rmb rmc rme rmh rmi rml rmm rmo rmr roa rob roc roe roh roi rol rom roo ror roy rra rrb rrc rrh rri rrl rrm rrr ry- rya ryc rye rym ryo ryr ryy yaa yab yac yae yah yai yal yam yao yar yay ybc ybe ybi ybl ybm ybr yby yca ycc yce ych yci ycl yco ycy yea yeb yec yee yeh yei yel yem yeo yer yey yha yhc yhe yhi yie yih yii yim yio yir ylc yle yli yll ylm ylr yly yma ymc yme ymi yml ymm ymo yob yoc yoe yoi yol yom yoo yor yoy yra yrc yre yro yyb yyc yye yyy