nsb nsd nse nsg nsh nsi nsk nsl nsn nss nst ntb ntd nte ntg nth nti ntk ntn nts ntt sbb sbd sbe sbg sbh sbi sbk sbl sbn sbs sbt sdb sdd sde sdg sdh sdi sdk sdl sdn sds sdt se- seb sed see seg seh sei sek sel sen ses set sgb sgd sge sgg sgh sgi sgk sgl sgn sgs sgt sh- shb shd she shg shh shi shk shl shn shs sht sib sid sie sig sih sii sik sil sin sis sit sk- skb skd ske skg skh ski skk skl sks skt slb sld sle slg slh sli slk sll sln sls slt snb snd sne sng sni snk snl snn sns snt ss- ssb ssd sse ssg ssh ssi ssk ssl ssn sss sst stb std ste stg sth sti stk stl stn sts stt tbb tbd tbe tbg tbh tbi tbk tbl tbn tbs tbt tdb tdd tde tdg tdh tdi tdk tdl tdn tds tdt te- teb ted tee teg teh tei tek tel ten tes tet tgb tge tgg tgh tgi tgk tgl tgn tgs tgt th- thb thd the thg thh thi thk thl thn ths tht tib tid tie tig tih tii tik til tin tis tit tkb tke tkg tkk tkl tks tkt tld tle tlg tlh tli tlk tll tln tls tlt tnb tnd tne tng tnh tni tnk tnl tnn tns tnt tsb tsd tse tsg tsh tsi tsk tsl tsn tss tst ttb ttd tte ttg tth tti ttk ttl ttn tts ttt