rpg rph rpi rpm rpo rpp rpr rps rrc rrg rrh rri rrm rrp rrr rrs rsc rse rsg rsh rsi rsm rso rsp rsr rss ry- ryc rye ryg rym ryo ryr rys ryy scc sce scg sch sci scm sco scp scr scs se- sec see seg seh sei sem seo sep ser ses sey sgc sge sgg sgh sgi sgm sgo sgp sgr sgs sh- shc she shg shh shi shm sho shp shr shs shy sic sie sig sih sii sim sio sip sir sis smc sme smg smh smi smm smo smp smr sms smy soc soe sog soh soi som soo sop sor sos soy spc spe spg sph spi spm spo spp spr sps spy sr- src sre srg srh sri srm sro srp srr srs sry ss- ssc sse ssg ssh ssi ssm sso ssp ssr sss sy- syc sye syg syh syi sym syp syr sys ycc yce ych yci yco ycp ycs ycy yec yee yeg yeh yei yem yeo yep yer yes yey ygc ygm ygo yhc yhe yhi yhs yie yig yih yii yim yio yip yir yis ymc yme ymg ymi ymm ymo yms yoc yoe yog yoi yom yoo yop yor yos yoy ypg ypo yps yrc yre yrg yro yrp yrs ysc yse ysg ysi ysm yso ysp ysr yss ysy yyc yye yyg yys yyy