rfe rff rfl rfo rfp rfr rfs rla rlc rld rle rlf rll rlo rlp rlr rls rly roa roc rod roe rof rol roo rop ror ros roy rpa rpc rpd rpe rpf rpl rpo rpp rpr rps rra rrc rrd rrf rrl rrp rrr rrs rsa rsc rsd rse rsf rsl rso rsp rsr rss ry- rya ryc ryd rye ryf ryo ryr rys ryy saa sac sad sae saf sal sao sap sar sas say sca scc scd sce scf scl sco scp scr scs sda sdc sdd sde sdf sdl sdo sdp sdr sds sdy se- sea sec sed see sef sel seo sep ser ses sey sfa sfc sfd sfe sff sfl sfo sfp sfr sfs sla slc sld sle slf sll slo slp slr sls sly soa soc sod soe sof sol soo sop sor sos soy spa spc spd spe spf spl spo spp spr sps spy sr- sra src srd sre srf srl sro srp srr srs sry ss- ssa ssc ssd sse ssf ssl sso ssp ssr sss sy- sya syc syd sye syl syp syr sys yaa yac yad yae yaf yal yao yap yar yas yay yca ycc ycd yce ycf ycl yco ycp ycs ycy yda yde ydl ydo yds ydy yea yec yed yee yef yel yeo yep yer yes yey yfa yfc yfd yfe yff yfr yfs ylc yld yle yll ylr yls yly yoc yod yoe yof yol yoo yop yor yos yoy ypa ypd ypf ypl ypo yps yra yrc yre yrf yro yrp yrs ysa ysc yse ysl yso ysp ysr yss ysy yyc yye yyf yys yyy