a-a a-b a-t aaa aab aag aak aan aar aas aat aau ab- aba abb abg abk abn abr abs abt abu ag- aga agb agg agk agn agr ags agt agu aka akb akg akk akn akr aks aku an- ana anb ang ank ann anr ans ant anu ar- ara arb arg ark arn arr ars art aru as- asa asb asg ask asn asr ass ast asu at- ata atb atg atn atr ats att atu au- aua aub aug auk aun aur aus aut b-u baa bab bag bak ban bar bas bat bau bba bbb bbg bbk bbn bbr bbs bbt bbu bga bgb bgg bgk bgn bgr bgs bgt bgu bka bkb bkg bkk bkn bkr bks bkt bna bnb bng bnk bnn bnr bns bnt bnu bra brb brg brk brn brr brs brt bru bsa bsb bsg bsk bsn bsr bss bst bsu bta btb btg btk btn btr bts btt btu bua bub bug buk bun bur bus but buu gaa gab gag gak gan gar gas gat gau gba gbg gbk gbn gbr gbs gbt gbu gga ggb ggg ggn ggr ggs ggt ggu gka gkb gkn gks gkt gna gnb gnn gnr gns gnt gnu gra grb grg grk grn grr grs grt gru gsa gsb gsg gsk gsn gsr gss gst gsu gta gtb gtg gtk gtn gtr gts gtt gtu gu- gua gub gug guk gun gur gus gut guu k-t ka- kaa kab kag kak kan kar kas kat kau kba kbb kbk kbn kbr kbs kbu kga kgb kgs kgu kkb kkk kkn kkr kks kkt kku kn- kna kng knk knn knr knt knu kra krg krk krn krr krs krt kru ksa ksb ksg ksk ksn ksr kss kst ksu kta ktb ktg ktk ktn ktr kts ktt ktu kub kug kuk kun kur kus kut kuu naa nab nag nak nan nar nas nat nau nba nbb nbg nbk nbn nbr nbs nbt nbu nga ngb ngg ngk ngn ngs ngt ngu nka nkk nkn nkr nks nkt nku nna nnb nng nnk nnn nns nnt nnu nra nrb nrg nrk nrn nrr nrs nrt nru nsa nsb nsg nsk nsn nsr nss nst nsu nta ntb ntg ntk ntn ntr nts ntt ntu nua nub nug nuk nun nur nus nut nuu ra- raa rab rag rak ran rar ras rat rau rba rbb rbg rbk rbn rbr rbs rbt rbu rga rgb rgg rgk rgn rgr rgs rgt rkb rkg rkk rks rkt rku rna rnb rng rnn rnr rns rnt rnu rra rrb rrg rrk rrn rrr rrs rrt rru rsa rsb rsg rsk rsn rsr rss rst rsu rta rtb rtg rtk rtn rtr rts rtt rtu rua rub rug ruk run rur rus rut ruu saa sab sag sak san sar sas sat sau sba sbb sbg sbk sbn sbr sbs sbt sbu sga sgb sgg sgk sgn sgr sgs sgt sgu sk- ska skb skg skk skr sks skt sku sna snb sng snk snn snr sns snt snu sr- sra srb srg srk srn srr srs srt ss- ssa ssb ssg ssk ssn ssr sss sst ssu sta stb stg stk stn str sts stt stu sua sub sug suk sun sur sus sut suu taa tab tag tak tan tar tas tat tau tba tbb tbg tbk tbn tbr tbs tbt tbu tga tgb tgg tgk tgn tgr tgs tgt tgu tka tkb tkg tkk tkr tks tkt tna tnb tng tnk tnn tnr tns tnt tra trb trg trk trn trr trs trt tru tsa tsb tsg tsk tsn tsr tss tst tsu tta ttb ttg ttk ttn ttr tts ttt ttu tua tub tug tuk tun tur tus tut tuu ua- uaa uab uag uak uan uar uas uat uau uba ubb ubg ubk ubn ubr ubs ubt ubu uga ugb ugg ugk ugn ugr ugs ugt ugu uka ukb ukk ukn ukr uku un- una unb ung unk unn unr uns unt unu ur- ura urb urg urk urn urr urs urt uru usa usb usg usk usn usr uss ust usu uta utb utk utn utr uts utt utu uua uug uun uur uus uut uuu