roa roc rog roh roi rol roo rop ror ros roy rpa rpc rpg rph rpi rpl rpo rpp rpr rps rra rrc rrg rrh rri rrl rrp rrr rrs rsa rsc rsg rsh rsi rsl rso rsp rsr rss ry- rya ryc ryg ryo ryr rys ryy saa sac sag sah sai sal sao sap sar sas say sca scc scg sch sci scl sco scp scr scs sga sgc sgg sgh sgi sgl sgo sgp sgr sgs sh- sha shc shg shh shi shl sho shp shr shs shy sia sic sig sih sii sil sio sip sir sis sla slc slg slh sli sll slo slp slr sls sly soa soc sog soh soi sol soo sop sor sos soy spa spc spg sph spi spl spo spp spr sps spy sr- sra src srg srh sri srl sro srp srr srs sry ss- ssa ssc ssg ssh ssi ssl sso ssp ssr sss sy- sya syc syg syh syi syl syp syr sys yaa yac yag yah yai yal yao yap yar yas yay yca ycc ych yci ycl yco ycp ycs ycy yga ygc ygl ygo yha yhc yhi yhs yig yih yii yio yip yir yis ylc ylg yli yll ylr yls yly yoc yog yoi yol yoo yop yor yos yoy ypa ypg ypl ypo yps yra yrc yrg yro yrp yrs ysa ysc ysg ysi ysl yso ysp ysr yss ysy yyc yyg yys yyy