rst rta rtb rte rtg rti rtj rtl rtn rtr rts rtt saa sab sae sag sai saj sal san sar sas sat sba sbb sbe sbg sbi sbj sbl sbn sbr sbs sbt se- sea seb see seg sei sej sel sen ser ses set sga sgb sge sgg sgi sgl sgn sgr sgs sgt sia sib sie sig sii sij sil sin sir sis sit sja sjb sje sji sjj sjr sjs sjt sla slb sle slg sli slj sll sln slr sls slt sna snb sne sng sni snj snl snn snr sns snt sr- sra srb sre srg sri srj srl srn srr srs srt ss- ssa ssb sse ssg ssi ssj ssl ssn ssr sss sst sta stb ste stg sti stj stl stn str sts stt taa tab tae tag tai taj tal tan tar tas tat tba tbb tbe tbg tbi tbj tbl tbn tbr tbs tbt te- tea teb tee teg tei tej tel ten ter tes tet tga tgb tge tgg tgi tgl tgn tgr tgs tgt tia tib tie tig tii til tin tir tis tit tje tji tjr tjs tla tle tlg tli tlj tll tln tlr tls tlt tna tnb tne tng tni tnl tnn tnr tns tnt tra trb tre trg tri trl trn trr trs trt tsa tsb tse tsg tsi tsj tsl tsn tsr tss tst tta ttb tte ttg tti ttl ttn ttr tts ttt