rok rol ron roo ror ros rot rrb rrg rri rrk rrl rrn rrr rrs rrt rsb rse rsg rsi rsk rsl rsn rso rsr rss rst rtb rte rtg rti rtk rtl rtn rto rtr rts rtt sbb sbe sbg sbi sbk sbl sbn sbo sbr sbs sbt se- seb see seg sei sek sel sen seo ser ses set sgb sge sgg sgi sgk sgl sgn sgo sgr sgs sgt sib sie sig sii sik sil sin sio sir sis sit sk- skb ske skg ski skk skl sko skr sks skt slb sle slg sli slk sll sln slo slr sls slt snb sne sng sni snk snl snn sno snr sns snt sob soe sog soi sok sol son soo sor sos sot sr- srb sre srg sri srk srl srn sro srr srs srt ss- ssb sse ssg ssi ssk ssl ssn sso ssr sss sst stb ste stg sti stk stl stn sto str sts stt tbb tbe tbg tbi tbk tbl tbn tbo tbr tbs tbt te- teb tee teg tei tek tel ten teo ter tes tet tgb tge tgg tgi tgk tgl tgn tgo tgr tgs tgt tib tie tig tii tik til tin tio tir tis tit tkb tke tkg tkk tkl tko tkr tks tkt tle tlg tli tlk tll tln tlo tlr tls tlt tnb tne tng tni tnk tnl tnn tno tnr tns tnt to- tob toe tog toi tok tol ton too tor tos tot trb tre trg tri trk trl trn tro trr trs trt tsb tse tsg tsi tsk tsl tsn tso tsr tss tst ttb tte ttg tti ttk ttl ttn tto ttr tts ttt