rco rcr rcs rct re- rea rec ree ref reg rel ren reo rer res ret rfa rfc rfe rff rfg rfl rfn rfo rfr rfs rft rga rgc rge rgf rgg rgn rgo rgr rgs rgt rla rlc rle rlf rlg rll rln rlo rlr rls rlt rna rnc rng rnn rno rnr rns rnt roa roc roe rof rog rol ron roo ror ros rot rra rrc rrf rrg rrl rrn rrr rrs rrt rsa rsc rse rsf rsg rsl rsn rso rsr rss rst rta rtc rte rtf rtg rtl rtn rto rtr rts rtt saa sac sae saf sag sal san sao sar sas sat sca scc sce scf scg scl scn sco scr scs sct se- sea sec see sef seg sel sen seo ser ses set sfa sfc sfe sff sfg sfl sfn sfo sfr sfs sft sga sgc sge sgf sgg sgl sgn sgo sgr sgs sgt sla slc sle slf slg sll sln slo slr sls slt sna snc sne snf sng snl snn sno snr sns snt soa soc soe sof sog sol son soo sor sos sot sr- sra src sre srf srg srl srn sro srr srs srt ss- ssa ssc sse ssf ssg ssl ssn sso ssr sss sst sta stc ste stf stg stl stn sto str sts stt taa tac tae taf tag tal tan tao tar tas tat tca tcc tce tcf tcg tcl tcn tco tcr tcs tct te- tea tec tee tef teg tel ten teo ter tes tet tfa tfc tfe tff tfg tfl tfn tfo tfr tfs tft tga tgc tge tgf tgg tgl tgn tgo tgr tgs tgt tla tlc tle tlf tlg tll tln tlo tlr tls tlt tna tnc tne tnf tng tnl tnn tno tnr tns tnt to- toa toc toe tof tog tol ton too tor tos tot tra trc tre trf trg trl trn tro trr trs trt tsa tsc tse tsf tsg tsl tsn tso tsr tss tst tta ttc tte ttf ttg ttl ttn tto ttr tts ttt