or- orc ord ore orf org orh ori ork oro orr ors os- osc osd ose osf osg osh osi osk oso osr oss rcc rcd rce rcf rcg rch rci rco rcr rcs rdc rdd rde rdf rdg rdh rdi rdo rdr rds re- rec red ree ref reg reh rei rek reo rer res rfc rfd rfe rff rfg rfh rfi rfk rfo rfr rfs rgc rgd rge rgf rgg rgh rgi rgk rgo rgr rgs rh- rhc rhd rhe rhf rhg rhh rhi rho rhr rhs ric rid rie rif rig rih rii rik rio rir ris rkc rke rkf rkg rkk rko rks roc rod roe rof rog roh roi rok roo ror ros rrc rrd rrf rrg rrh rri rrk rrr rrs rsc rsd rse rsf rsg rsh rsi rsk rso rsr rss scc scd sce scf scg sch sci sck sco scr scs sdc sdd sde sdf sdg sdh sdi sdk sdo sdr sds se- sec sed see sef seg seh sei sek seo ser ses sfc sfd sfe sff sfg sfh sfi sfk sfo sfr sfs sgc sgd sge sgf sgg sgh sgi sgk sgo sgr sgs sh- shc shd she shf shg shh shi shk sho shr shs sic sid sie sif sig sih sii sik sio sir sis sk- skc skd ske skf skg skh ski skk sko skr sks soc sod soe sof sog soh soi sok soo sor sos sr- src srd sre srf srg srh sri srk sro srr srs ss- ssc ssd sse ssf ssg ssh ssi ssk sso ssr sss