ome omi oml omm omo omr omy oo- ooa oob ooc ooi ook ool oom ooo oor or- ora orb orc ore ori ork orl orm oro orr ory oya oye oyi oyl oyo ra- raa rab rac rae rai rak ral ram rao rar ray rba rbb rbc rbe rbi rbk rbl rbm rbo rbr rca rcb rcc rce rci rcl rcm rco rcr re- rea reb rec ree rei rek rel rem reo rer rey ria rib ric rie rii rik ril rim rio rir riy rkb rkc rke rkk rkm rko rky rla rlc rle rli rll rlm rlo rlr rly rma rmb rmc rme rmi rml rmm rmo rmr roa rob roc roe roi rok rol rom roo ror roy rra rrb rrc rri rrk rrl rrm rrr ry- rya ryc rye ryk rym ryo ryr ryy yaa yab yac yae yai yak yal yam yao yar yay ybc ybe ybi ybl ybm ybr yby yca ycc yce yci ycl yco ycy yea yeb yec yee yei yek yel yem yeo yer yey yie yii yim yio yir yka yki ykk ykm ylc yle yli ylk yll ylm ylr yly yma ymc yme ymi yml ymm ymo yob yoc yoe yoi yok yol yom yoo yor yoy yra yrc yre yro yyb yyc yye yyy