rri rrl rrn rrp rrr rrs rsd rse rsf rsg rsi rsl rsn rsp rsr rss ry- ryd rye ryf ryg ryn ryr rys ryy sdd sde sdf sdg sdi sdl sdn sdp sdr sds sdy se- sed see sef seg sei sel sen sep ser ses sey sfd sfe sff sfg sfi sfl sfn sfp sfr sfs sgd sge sgf sgg sgi sgl sgn sgp sgr sgs sid sie sif sig sii sil sin sip sir sis sld sle slf slg sli sll sln slp slr sls sly snd sne snf sng sni snl snn snp snr sns sny spd spe spf spg spi spl spn spp spr sps spy sr- srd sre srf srg sri srl srn srp srr srs sry ss- ssd sse ssf ssg ssi ssl ssn ssp ssr sss sy- syd sye syg syi syl syn syp syr sys yde ydg ydl ydn yds ydy yed yee yef yeg yei yel yen yep yer yes yey yfd yfe yff yfr yfs ygl yid yie yif yig yii yin yip yir yis yld yle ylg yli yll ylr yls yly ynd yne yng ynn ynp yns yny ypd ypf ypg ypl yps yre yrf yrg yrn yrp yrs yse ysg ysi ysl ysp ysr yss ysy yye yyf yyg yys yyy