nkk nkn nks nkt nla nlb nle nlf nlg nli nlk nll nln nls nlt nna nnb nne nnf nng nni nnk nnl nnn nns nnt nsa nsb nse nsf nsg nsi nsk nsl nsn nss nst nta ntb nte ntf ntg nti ntk ntn nts ntt saa sab sae saf sag sai sak sal san sas sat sba sbb sbe sbf sbg sbi sbk sbl sbn sbs sbt se- sea seb see sef seg sei sek sel sen ses set sfa sfb sfe sff sfg sfi sfk sfl sfn sfs sft sga sgb sge sgf sgg sgi sgk sgl sgn sgs sgt sia sib sie sif sig sii sik sil sin sis sit sk- ska skb ske skf skg ski skk skl sks skt sla slb sle slf slg sli slk sll sln sls slt sna snb sne snf sng sni snk snl snn sns snt ss- ssa ssb sse ssf ssg ssi ssk ssl ssn sss sst sta stb ste stf stg sti stk stl stn sts stt taa tab tae taf tag tai tak tal tan tas tat tba tbb tbe tbf tbg tbi tbk tbl tbn tbs tbt te- tea teb tee tef teg tei tek tel ten tes tet tfa tfb tfe tff tfg tfi tfk tfl tfn tfs tft tga tgb tge tgf tgg tgi tgk tgl tgn tgs tgt tia tib tie tif tig tii tik til tin tis tit tka tkb tke tkg tkk tkl tks tkt tla tle tlf tlg tli tlk tll tln tls tlt tna tnb tne tnf tng tni tnk tnl tnn tns tnt tsa tsb tse tsf tsg tsi tsk tsl tsn tss tst tta ttb tte ttf ttg tti ttk ttl ttn tts ttt