rte rtg rtj rtn rto rtr rts rtt saa sab sad sae sag saj san sao sar sas sat sba sbb sbd sbe sbg sbj sbn sbo sbr sbs sbt sda sdb sdd sde sdg sdj sdn sdo sdr sds sdt se- sea seb sed see seg sej sen seo ser ses set sga sgb sgd sge sgg sgn sgo sgr sgs sgt sja sjb sjd sje sjj sjr sjs sjt sna snb snd sne sng snj snn sno snr sns snt soa sob sod soe sog soj son soo sor sos sot sr- sra srb srd sre srg srj srn sro srr srs srt ss- ssa ssb ssd sse ssg ssj ssn sso ssr sss sst sta stb std ste stg stj stn sto str sts stt taa tab tad tae tag taj tan tao tar tas tat tba tbb tbd tbe tbg tbj tbn tbo tbr tbs tbt tda tdb tdd tde tdg tdn tdo tdr tds tdt te- tea teb ted tee teg tej ten teo ter tes tet tga tgb tge tgg tgn tgo tgr tgs tgt tjd tje tjo tjr tjs tna tnb tnd tne tng tnn tno tnr tns tnt to- toa tob tod toe tog toj ton too tor tos tot tra trb trd tre trg trn tro trr trs trt tsa tsb tsd tse tsg tsj tsn tso tsr tss tst tta ttb ttd tte ttg ttn tto ttr tts ttt