rpd rph rpi rpl rpn rpo rpp rpr rps rrc rrd rrh rri rrl rrn rrp rrr rrs rsc rsd rsh rsi rsl rsn rso rsp rsr rss ry- ryc ryd ryn ryo ryr rys ryy scc scd sch sci scl scn sco scp scr scs sdc sdd sdh sdi sdl sdn sdo sdp sdr sds sdy sh- shc shd shh shi shl shn sho shp shr shs shy sic sid sih sii sil sin sio sip sir sis slc sld slh sli sll sln slo slp slr sls sly snc snd sni snl snn sno snp snr sns sny soc sod soh soi sol son soo sop sor sos soy spc spd sph spi spl spn spo spp spr sps spy sr- src srd srh sri srl srn sro srp srr srs sry ss- ssc ssd ssh ssi ssl ssn sso ssp ssr sss sy- syc syd syh syi syl syn syp syr sys ycc ycd ych yci ycl yco ycp ycs ycy ydl ydn ydo yds ydy yhc yhi yhs yid yih yii yin yio yip yir yis ylc yld yli yll ylr yls yly ynd ynn ynp yns yny yoc yod yoi yol yon yoo yop yor yos yoy ypd ypl ypo yps yrc yrn yro yrp yrs ysc ysi ysl yso ysp ysr yss ysy yyc yys yyy