rdo rdp rdr rds rdy re- rea reb rec red ree rei reo rep rer res rey ria rib ric rid rie rii rio rip rir ris riy roa rob roc rod roe roi roo rop ror ros roy rpa rpb rpc rpd rpe rpi rpo rpp rpr rps rra rrb rrc rrd rri rrp rrr rrs rsa rsb rsc rsd rse rsi rso rsp rsr rss ry- rya ryc ryd rye ryo ryr rys ryy saa sab sac sad sae sai sao sap sar sas say sba sbb sbc sbd sbe sbi sbo sbp sbr sbs sby sca scb scc scd sce sci sco scp scr scs sda sdb sdc sdd sde sdi sdo sdp sdr sds sdy se- sea seb sec sed see sei seo sep ser ses sey sia sib sic sid sie sii sio sip sir sis soa sob soc sod soe soi soo sop sor sos soy spa spb spc spd spe spi spo spp spr sps spy sr- sra srb src srd sre sri sro srp srr srs sry ss- ssa ssb ssc ssd sse ssi sso ssp ssr sss sy- sya syb syc syd sye syi syp syr sys yaa yab yac yad yae yai yao yap yar yas yay ybc ybe ybi ybp ybr ybs yby yca ycc ycd yce yci yco ycp ycs ycy yda yde ydo yds ydy yea yeb yec yed yee yei yeo yep yer yes yey yid yie yii yio yip yir yis yob yoc yod yoe yoi yoo yop yor yos yoy ypa ypd ypo yps yra yrc yre yro yrp yrs ysa ysb ysc yse ysi yso ysp ysr yss ysy yyb yyc yye yys yyy