nki nkk nkn nkr nks nla nlc nle nlf nlg nli nlk nll nln nlr nls nna nnc nne nnf nng nni nnk nnl nnn nns nra nrc nre nrf nrg nri nrk nrl nrn nrr nrs nsa nsc nse nsf nsg nsi nsk nsl nsn nsr nss ra- raa rac rae raf rag rai rak ral ran rar ras rca rcc rce rcf rcg rci rcl rcn rcr rcs re- rea rec ree ref reg rei rek rel ren rer res rfa rfc rfe rff rfg rfi rfk rfl rfn rfr rfs rga rgc rge rgf rgg rgi rgk rgn rgr rgs ria ric rie rif rig rii rik ril rin rir ris rkc rke rkf rkg rkk rks rla rlc rle rlf rlg rli rll rln rlr rls rna rnc rng rni rnn rnr rns rra rrc rrf rrg rri rrk rrl rrn rrr rrs rsa rsc rse rsf rsg rsi rsk rsl rsn rsr rss saa sac sae saf sag sai sak sal san sar sas sca scc sce scf scg sci sck scl scn scr scs se- sea sec see sef seg sei sek sel sen ser ses sfa sfc sfe sff sfg sfi sfk sfl sfn sfr sfs sga sgc sge sgf sgg sgi sgk sgl sgn sgr sgs sia sic sie sif sig sii sik sil sin sir sis sk- ska skc ske skf skg ski skk skl skr sks sla slc sle slf slg sli slk sll sln slr sls sna snc sne snf sng sni snk snl snn snr sns sr- sra src sre srf srg sri srk srl srn srr srs ss- ssa ssc sse ssf ssg ssi ssk ssl ssn ssr sss