rai ral ran rao rar ras rat rca rcc rce rcg rci rcl rcn rco rcr rcs rct re- rea rec ree reg rei rel ren reo rer res ret rga rgc rge rgg rgi rgn rgo rgr rgs rgt ria ric rie rig rii ril rin rio rir ris rit rla rlc rle rlg rli rll rln rlo rlr rls rlt rna rnc rng rni rnn rno rnr rns rnt roa roc roe rog roi rol ron roo ror ros rot rra rrc rrg rri rrl rrn rrr rrs rrt rsa rsc rse rsg rsi rsl rsn rso rsr rss rst rta rtc rte rtg rti rtl rtn rto rtr rts rtt saa sac sae sag sai sal san sao sar sas sat sca scc sce scg sci scl scn sco scr scs sct se- sea sec see seg sei sel sen seo ser ses set sga sgc sge sgg sgi sgl sgn sgo sgr sgs sgt sia sic sie sig sii sil sin sio sir sis sit sla slc sle slg sli sll sln slo slr sls slt sna snc sne sng sni snl snn sno snr sns snt soa soc soe sog soi sol son soo sor sos sot sr- sra src sre srg sri srl srn sro srr srs srt ss- ssa ssc sse ssg ssi ssl ssn sso ssr sss sst sta stc ste stg sti stl stn sto str sts stt taa tac tae tag tai tal tan tao tar tas tat tca tcc tce tcg tci tcl tcn tco tcr tcs tct te- tea tec tee teg tei tel ten teo ter tes tet tga tgc tge tgg tgi tgl tgn tgo tgr tgs tgt tia tic tie tig tii til tin tio tir tis tit tla tlc tle tlg tli tll tln tlo tlr tls tlt tna tnc tne tng tni tnl tnn tno tnr tns tnt to- toa toc toe tog toi tol ton too tor tos tot tra trc tre trg tri trl trn tro trr trs trt tsa tsc tse tsg tsi tsl tsn tso tsr tss tst tta ttc tte ttg tti ttl ttn tto ttr tts ttt