oli oll olm oln olo oly om- oma omb omc omf omi oml omm omn omo omr omy on- ona onb onc onf oni onl onn ono onr ony oo- ooa oob ooc oof ooi ool oom oon ooo oor or- ora orb orc orf ori orl orm orn oro orr ory oya oyi oyl oyo ra- raa rab rac raf rai ral ram ran rao rar ray rba rbb rbc rbf rbi rbl rbm rbn rbo rbr rca rcb rcc rcf rci rcl rcm rcn rco rcr rfa rfb rfc rff rfi rfl rfm rfn rfo rfr ria rib ric rif rii ril rim rin rio rir riy rla rlc rlf rli rll rlm rln rlo rlr rly rma rmb rmc rmf rmi rml rmm rmn rmo rmr rna rnb rnc rni rnm rnn rno rnr rny roa rob roc rof roi rol rom ron roo ror roy rra rrb rrc rrf rri rrl rrm rrn rrr ry- rya ryc ryf rym ryn ryo ryr ryy yaa yab yac yaf yai yal yam yan yao yar yay ybc ybf ybi ybl ybm ybr yby yca ycc ycf yci ycl yco ycy yfa yfc yff yfm yfr yif yii yim yin yio yir ylc yli yll ylm ylr yly yma ymc ymi yml ymm ymo yna ynn yny yob yoc yof yoi yol yom yon yoo yor yoy yra yrc yrf yrn yro yyb yyc yyf yyy