oea oeb oec oed oee oel oem oen oeo oer oey ola olb olc old ole oll olm oln olo oly om- oma omb omc omd ome oml omm omn omo omr omy on- ona onb onc ond one onl onn ono onr ony oo- ooa oob ooc ood ool oom oon ooo oor or- ora orb orc ord ore orl orm orn oro orr ory oya oyd oye oyl oyo ra- raa rab rac rad rae ral ram ran rao rar ray rba rbb rbc rbd rbe rbl rbm rbn rbo rbr rca rcb rcc rcd rce rcl rcm rcn rco rcr rda rdb rdc rdd rde rdl rdm rdn rdo rdr rdy re- rea reb rec red ree rel rem ren reo rer rey rla rlc rld rle rll rlm rln rlo rlr rly rma rmb rmc rmd rme rml rmm rmn rmo rmr rna rnb rnc rnd rnm rnn rno rnr rny roa rob roc rod roe rol rom ron roo ror roy rra rrb rrc rrd rrl rrm rrn rrr ry- rya ryc ryd rye rym ryn ryo ryr ryy yaa yab yac yad yae yal yam yan yao yar yay ybc ybe ybl ybm ybr yby yca ycc ycd yce ycl yco ycy yda yde ydl ydn ydo ydy yea yeb yec yed yee yel yem yen yeo yer yey ylc yld yle yll ylm ylr yly yma ymc yme yml ymm ymo yna ynd yne ynn yny yob yoc yod yoe yol yom yon yoo yor yoy yra yrc yre yrn yro yyb yyc yye yyy