onb one onf ong oni onl onn ono onr ony oo- ooa oob oof oog ooi ool oon ooo oor or- ora orb ore orf org ori orl orn oro orr ory oya oye oyi oyl oyo ra- raa rab rae raf rag rai ral ran rao rar ray rba rbb rbe rbf rbg rbi rbl rbn rbo rbr re- rea reb ree ref reg rei rel ren reo rer rey rfa rfb rfe rff rfg rfi rfl rfn rfo rfr rga rgb rge rgf rgg rgi rgn rgo rgr ria rib rie rif rig rii ril rin rio rir riy rla rle rlf rlg rli rll rln rlo rlr rly rna rnb rng rni rnn rno rnr rny roa rob roe rof rog roi rol ron roo ror roy rra rrb rrf rrg rri rrl rrn rrr ry- rya rye ryf ryg ryn ryo ryr ryy yaa yab yae yaf yag yai yal yan yao yar yay ybe ybf ybg ybi ybl ybr yby yea yeb yee yef yeg yei yel yen yeo yer yey yfa yfe yff yfr yga ygl ygo yie yif yig yii yin yio yir yle ylg yli yll ylr yly yna yne yng ynn yny yob yoe yof yog yoi yol yon yoo yor yoy yra yre yrf yrg yrn yro yyb yye yyf yyg yyy