rgt ria rib rid rie rig rii rik rin rir ris rit rkb rke rkg rkk rks rkt rna rnb rnd rng rni rnn rnr rns rnt rra rrb rrd rrg rri rrk rrn rrr rrs rrt rsa rsb rsd rse rsg rsi rsk rsn rsr rss rst rta rtb rtd rte rtg rti rtk rtn rtr rts rtt saa sab sad sae sag sai sak san sar sas sat sba sbb sbd sbe sbg sbi sbk sbn sbr sbs sbt sda sdb sdd sde sdg sdi sdk sdn sdr sds sdt se- sea seb sed see seg sei sek sen ser ses set sga sgb sgd sge sgg sgi sgk sgn sgr sgs sgt sia sib sid sie sig sii sik sin sir sis sit sk- ska skb skd ske skg ski skk skr sks skt sna snb snd sne sng sni snk snn snr sns snt sr- sra srb srd sre srg sri srk srn srr srs srt ss- ssa ssb ssd sse ssg ssi ssk ssn ssr sss sst sta stb std ste stg sti stk stn str sts stt taa tab tad tae tag tai tak tan tar tas tat tba tbb tbd tbe tbg tbi tbk tbn tbr tbs tbt tda tdb tdd tde tdg tdi tdk tdn tdr tds tdt te- tea teb ted tee teg tei tek ten ter tes tet tga tgb tge tgg tgi tgk tgn tgr tgs tgt tia tib tid tie tig tii tik tin tir tis tit tka tkb tke tkg tkk tkr tks tkt tna tnb tnd tne tng tni tnk tnn tnr tns tnt tra trb trd tre trg tri trk trn trr trs trt tsa tsb tsd tse tsg tsi tsk tsn tsr tss tst tta ttb ttd tte ttg tti ttk ttn ttr tts ttt