rpi rpm rpo rpp rpr rps rrd rrg rrh rri rrm rrp rrr rrs rsd rse rsg rsh rsi rsm rso rsp rsr rss ry- ryd rye ryg rym ryo ryr rys ryy sdd sde sdg sdh sdi sdm sdo sdp sdr sds sdy se- sed see seg seh sei sem seo sep ser ses sey sgd sge sgg sgh sgi sgm sgo sgp sgr sgs sh- shd she shg shh shi shm sho shp shr shs shy sid sie sig sih sii sim sio sip sir sis smd sme smg smh smi smm smo smp smr sms smy sod soe sog soh soi som soo sop sor sos soy spd spe spg sph spi spm spo spp spr sps spy sr- srd sre srg srh sri srm sro srp srr srs sry ss- ssd sse ssg ssh ssi ssm sso ssp ssr sss sy- syd sye syg syh syi sym syp syr sys yde ydg ydo yds ydy yed yee yeg yeh yei yem yeo yep yer yes yey ygm ygo yhe yhi yhs yid yie yig yih yii yim yio yip yir yis yme ymg ymi ymm ymo yms yod yoe yog yoi yom yoo yop yor yos yoy ypd ypg ypo yps yre yrg yro yrp yrs yse ysg ysi ysm yso ysp ysr yss ysy yye yyg yys yyy