ree ref reg rel ren reo rer res ret rfa rfb rfe rff rfg rfl rfn rfo rfr rfs rft rga rgb rge rgf rgg rgn rgo rgr rgs rgt rla rle rlf rlg rll rln rlo rlr rls rlt rna rnb rng rnn rno rnr rns rnt roa rob roe rof rog rol ron roo ror ros rot rra rrb rrf rrg rrl rrn rrr rrs rrt rsa rsb rse rsf rsg rsl rsn rso rsr rss rst rta rtb rte rtf rtg rtl rtn rto rtr rts rtt saa sab sae saf sag sal san sao sar sas sat sba sbb sbe sbf sbg sbl sbn sbo sbr sbs sbt se- sea seb see sef seg sel sen seo ser ses set sfa sfb sfe sff sfg sfl sfn sfo sfr sfs sft sga sgb sge sgf sgg sgl sgn sgo sgr sgs sgt sla slb sle slf slg sll sln slo slr sls slt sna snb sne snf sng snl snn sno snr sns snt soa sob soe sof sog sol son soo sor sos sot sr- sra srb sre srf srg srl srn sro srr srs srt ss- ssa ssb sse ssf ssg ssl ssn sso ssr sss sst sta stb ste stf stg stl stn sto str sts stt taa tab tae taf tag tal tan tao tar tas tat tba tbb tbe tbf tbg tbl tbn tbo tbr tbs tbt te- tea teb tee tef teg tel ten teo ter tes tet tfa tfb tfe tff tfg tfl tfn tfo tfr tfs tft tga tgb tge tgf tgg tgl tgn tgo tgr tgs tgt tla tle tlf tlg tll tln tlo tlr tls tlt tna tnb tne tnf tng tnl tnn tno tnr tns tnt to- toa tob toe tof tog tol ton too tor tos tot tra trb tre trf trg trl trn tro trr trs trt tsa tsb tse tsf tsg tsl tsn tso tsr tss tst tta ttb tte ttf ttg ttl ttn tto ttr tts ttt