rnd rng rni rnn rno rnr rns rny roa rob rod rog roi rol ron roo ror ros roy rra rrb rrd rrg rri rrl rrn rrr rrs rsa rsb rsd rsg rsi rsl rsn rso rsr rss ry- rya ryd ryg ryn ryo ryr rys ryy saa sab sad sag sai sal san sao sar sas say sba sbb sbd sbg sbi sbl sbn sbo sbr sbs sby sda sdb sdd sdg sdi sdl sdn sdo sdr sds sdy sga sgb sgd sgg sgi sgl sgn sgo sgr sgs sia sib sid sig sii sil sin sio sir sis sla slb sld slg sli sll sln slo slr sls sly sna snb snd sng sni snl snn sno snr sns sny soa sob sod sog soi sol son soo sor sos soy sr- sra srb srd srg sri srl srn sro srr srs sry ss- ssa ssb ssd ssg ssi ssl ssn sso ssr sss sy- sya syb syd syg syi syl syn syr sys yaa yab yad yag yai yal yan yao yar yas yay ybg ybi ybl ybr ybs yby yda ydg ydl ydn ydo yds ydy yga ygl ygo yid yig yii yin yio yir yis yld ylg yli yll ylr yls yly yna ynd yng ynn yns yny yob yod yog yoi yol yon yoo yor yos yoy yra yrg yrn yro yrs ysa ysb ysg ysi ysl yso ysr yss ysy yyb yyg yys yyy