ngc nge ngg ngi ngk ngl ngn ngs ngt ngu nib nic nie nig nii nik nil nin nir nis nit niu nkc nke nki nkk nkn nkr nks nkt nku nlb nlc nle nlg nli nlk nll nln nlr nls nlt nlu nnb nnc nne nng nni nnk nnl nnn nns nnt nnu nrb nrc nre nrg nri nrk nrl nrn nrr nrs nrt nru nsb nsc nse nsg nsi nsk nsl nsn nsr nss nst nsu ntb ntc nte ntg nti ntk ntn ntr nts ntt ntu nub nuc nue nug nui nuk nul nun nur nus nut nuu rbb rbc rbe rbg rbi rbk rbl rbn rbr rbs rbt rbu rcb rcc rce rcg rci rcl rcn rcr rcs rct rcu re- reb rec ree reg rei rek rel ren rer res ret reu rgb rgc rge rgg rgi rgk rgn rgr rgs rgt rib ric rie rig rii rik ril rin rir ris rit rkb rkc rke rkg rkk rks rkt rku rlc rle rlg rli rll rln rlr rls rlt rlu rnb rnc rng rni rnn rnr rns rnt rnu rrb rrc rrg rri rrk rrl rrn rrr rrs rrt rru rsb rsc rse rsg rsi rsk rsl rsn rsr rss rst rsu rtb rtc rte rtg rti rtk rtl rtn rtr rts rtt rtu rub ruc rue rug rui ruk run rur rus rut ruu sbb sbc sbe sbg sbi sbk sbl sbn sbr sbs sbt sbu scb scc sce scg sci sck scl scn scr scs sct scu se- seb sec see seg sei sek sel sen ser ses set seu sgb sgc sge sgg sgi sgk sgl sgn sgr sgs sgt sgu sib sic sie sig sii sik sil sin sir sis sit siu sk- skb skc ske skg ski skk skl skr sks skt sku slb slc sle slg sli slk sll sln slr sls slt slu snb snc sne sng sni snk snl snn snr sns snt snu sr- srb src sre srg sri srk srl srn srr srs srt ss- ssb ssc sse ssg ssi ssk ssl ssn ssr sss sst ssu stb stc ste stg sti stk stl stn str sts stt stu sub suc sue sug sui suk sul sun sur sus sut suu tbb tbc tbe tbg tbi tbk tbl tbn tbr tbs tbt tbu tcb tcc tce tcg tci tck tcl tcn tcr tcs tct tcu te- teb tec tee teg tei tek tel ten ter tes tet teu tgb tgc tge tgg tgi tgk tgl tgn tgr tgs tgt tgu tib tic tie tig tii tik til tin tir tis tit tiu tkb tkc tke tkg tkk tkl tkr tks tkt tlc tle tlg tli tlk tll tln tlr tls tlt tlu tnb tnc tne tng tni tnk tnl tnn tnr tns tnt trb trc tre trg tri trk trl trn trr trs trt tru tsb tsc tse tsg tsi tsk tsl tsn tsr tss tst tsu ttb ttc tte ttg tti ttk ttl ttn ttr tts ttt ttu tub tuc tue tug tui tuk tul tun tur tus tut tuu ubb ubc ube ubg ubi ubk ubl ubn ubr ubs ubt ubu ucb ucc uce ucg uci uck ucl ucn ucr ucs uct ucu ueb uec uee ueg uei uel uen uer ues uet ugb ugc uge ugg ugi ugk ugl ugn ugr ugs ugt ugu uib uic uie uig uii uil uin uir uis uit uiu ukb ukc uke uki ukk ukl ukn ukr uku ulb ulc ule ulg uli ulk ull uln ulr uls ult ulu un- unb unc une ung uni unk unl unn unr uns unt unu ur- urb urc ure urg uri urk url urn urr urs urt uru usb usc use usg usi usk usl usn usr uss ust usu utb utc ute uti utk utl utn utr uts utt utu uuc uue uug uun uur uus uut uuu