a-a a-b a-t aaa aab aag aak aan aao aar aas aat aau ab- aba abb abg abk abn abo abr abs abt abu ag- aga agb agg agk agn ago agr ags agt agu aka akb akg akk akn ako akr aks aku an- ana anb ang ank ann ano anr ans ant anu aoa aob aog aok aon aoo aor aos aot aou ar- ara arb arg ark arn aro arr ars art aru as- asa asb asg ask asn aso asr ass ast asu at- ata atb atg atn ato atr ats att atu au- aua aub aug auk aun auo aur aus aut b-u baa bab bag bak ban bao bar bas bat bau bba bbb bbg bbk bbn bbo bbr bbs bbt bbu bga bgb bgg bgk bgn bgo bgr bgs bgt bgu bka bkb bkg bkk bkn bko bkr bks bkt bna bnb bng bnk bnn bno bnr bns bnt bnu boa bob bog bok bon boo bor bos bot bou bra brb brg brk brn bro brr brs brt bru bsa bsb bsg bsk bsn bso bsr bss bst bsu bta btb btg btk btn bto btr bts btt btu bua bub bug buk bun buo bur bus but buu gaa gab gag gak gan gao gar gas gat gau gba gbg gbk gbn gbo gbr gbs gbt gbu gga ggb ggg ggn ggo ggr ggs ggt ggu gka gkb gkn gko gks gkt gna gnb gnn gno gnr gns gnt gnu goa gob gog gok gon goo gor gos got gou gra grb grg grk grn gro grr grs grt gru gsa gsb gsg gsk gsn gso gsr gss gst gsu gta gtb gtg gtk gtn gto gtr gts gtt gtu gu- gua gub gug guk gun guo gur gus gut guu k-t ka- kaa kab kag kak kan kao kar kas kat kau kba kbb kbk kbn kbo kbr kbs kbu kga kgb kgo kgs kgu kkb kkk kkn kkr kks kkt kku kn- kna kng knk knn kno knr knt knu koa kob kog kok kon koo kor kos kot kou kra krg krk krn kro krr krs krt kru ksa ksb ksg ksk ksn kso ksr kss kst ksu kta ktb ktg ktk ktn kto ktr kts ktt ktu kub kug kuk kun kur kus kut kuu naa nab nag nak nan nao nar nas nat nau nba nbb nbg nbk nbn nbo nbr nbs nbt nbu nga ngb ngg ngk ngn ngo ngs ngt ngu nka nkk nkn nko nkr nks nkt nku nna nnb nng nnk nnn nno nns nnt nnu no- noa nob nog nok non noo nor nos not nou nra nrb nrg nrk nrn nro nrr nrs nrt nru nsa nsb nsg nsk nsn nso nsr nss nst nsu nta ntb ntg ntk ntn nto ntr nts ntt ntu nua nub nug nuk nun nuo nur nus nut nuu oaa oab oag oak oan oao oar oas oat oau ob- oba obb obg obk obn obo obr obs obt obu oga ogg ogn ogo ogs ogt oka okb okg okk oko okr oks oku on- ona onb ong onk onn ono onr ons ont onu oo- ooa oob oog ook oon ooo oor oos oot or- ora orb org ork orn oro orr ors ort oru os- osa osb osg osk osn oso osr oss ost osu ot- ota otb otg otk otn oto otr ots ott otu ou- oua ouk oun ouo our ous out ra- raa rab rag rak ran rao rar ras rat rau rba rbb rbg rbk rbn rbo rbr rbs rbt rbu rga rgb rgg rgk rgn rgo rgr rgs rgt rkb rkg rkk rko rks rkt rku rna rnb rng rnn rno rnr rns rnt rnu roa rob rog rok ron roo ror ros rot rou rra rrb rrg rrk rrn rrr rrs rrt rru rsa rsb rsg rsk rsn rso rsr rss rst rsu rta rtb rtg rtk rtn rto rtr rts rtt rtu rua rub rug ruk run ruo rur rus rut ruu saa sab sag sak san sao sar sas sat sau sba sbb sbg sbk sbn sbo sbr sbs sbt sbu sga sgb sgg sgk sgn sgo sgr sgs sgt sgu sk- ska skb skg skk sko skr sks skt sku sna snb sng snk snn sno snr sns snt snu soa sob sog sok son soo sor sos sot sou sr- sra srb srg srk srn sro srr srs srt ss- ssa ssb ssg ssk ssn sso ssr sss sst ssu sta stb stg stk stn sto str sts stt stu sua sub sug suk sun suo sur sus sut suu taa tab tag tak tan tao tar tas tat tau tba tbb tbg tbk tbn tbo tbr tbs tbt tbu tga tgb tgg tgk tgn tgo tgr tgs tgt tgu tka tkb tkg tkk tko tkr tks tkt tna tnb tng tnk tnn tno tnr tns tnt to- toa tob tog tok ton too tor tos tot tou tra trb trg trk trn tro trr trs trt tru tsa tsb tsg tsk tsn tso tsr tss tst tsu tta ttb ttg ttk ttn tto ttr tts ttt ttu tua tub tug tuk tun tuo tur tus tut tuu ua- uaa uab uag uak uan uao uar uas uat uau uba ubb ubg ubk ubn ubo ubr ubs ubt ubu uga ugb ugg ugk ugn ugo ugr ugs ugt ugu uka ukb ukk ukn ukr uku un- una unb ung unk unn uno unr uns unt unu uoa uob uog uok uon uoo uor uos uot ur- ura urb urg urk urn uro urr urs urt uru usa usb usg usk usn uso usr uss ust usu uta utb utk utn uto utr uts utt utu uua uug uun uur uus uut uuu