rpo rpp rpr rps rrc rrg rrh rri rrn rrp rrr rrs rsc rse rsg rsh rsi rsn rso rsp rsr rss ry- ryc rye ryg ryn ryo ryr rys ryy scc sce scg sch sci scn sco scp scr scs se- sec see seg seh sei sen seo sep ser ses sey sgc sge sgg sgh sgi sgn sgo sgp sgr sgs sh- shc she shg shh shi shn sho shp shr shs shy sic sie sig sih sii sin sio sip sir sis snc sne sng sni snn sno snp snr sns sny soc soe sog soh soi son soo sop sor sos soy spc spe spg sph spi spn spo spp spr sps spy sr- src sre srg srh sri srn sro srp srr srs sry ss- ssc sse ssg ssh ssi ssn sso ssp ssr sss sy- syc sye syg syh syi syn syp syr sys ycc yce ych yci yco ycp ycs ycy yec yee yeg yeh yei yen yeo yep yer yes yey ygc ygo yhc yhe yhi yhs yie yig yih yii yin yio yip yir yis yne yng ynn ynp yns yny yoc yoe yog yoi yon yoo yop yor yos yoy ypg ypo yps yrc yre yrg yrn yro yrp yrs ysc yse ysg ysi yso ysp ysr yss ysy yyc yye yyg yys yyy