oin oio oir ola olb old ole olg oli oll oln olo oly on- ona onb ond one ong oni onl onn ono onr ony oo- ooa oob ood oog ooi ool oon ooo oor or- ora orb ord ore org ori orl orn oro orr ory oya oyd oye oyi oyl oyo ra- raa rab rad rae rag rai ral ran rao rar ray rba rbb rbd rbe rbg rbi rbl rbn rbo rbr rda rdb rdd rde rdg rdi rdl rdn rdo rdr rdy re- rea reb red ree reg rei rel ren reo rer rey rga rgb rgd rge rgg rgi rgn rgo rgr ria rib rid rie rig rii ril rin rio rir riy rla rld rle rlg rli rll rln rlo rlr rly rna rnb rnd rng rni rnn rno rnr rny roa rob rod roe rog roi rol ron roo ror roy rra rrb rrd rrg rri rrl rrn rrr ry- rya ryd rye ryg ryn ryo ryr ryy yaa yab yad yae yag yai yal yan yao yar yay ybe ybg ybi ybl ybr yby yda yde ydg ydl ydn ydo ydy yea yeb yed yee yeg yei yel yen yeo yer yey yga ygl ygo yid yie yig yii yin yio yir yld yle ylg yli yll ylr yly yna ynd yne yng ynn yny yob yod yoe yog yoi yol yon yoo yor yoy yra yre yrg yrn yro yyb yye yyg yyy