a-a a-b aaa aab aae aag aak aao aas aau aav ab- aba abb abe abg abk abo abs abu abv aea aeb aee aeg aek aeo aes aeu aev ag- aga agb age agg agk ago ags agu agv aka akb ake akg akk ako aks aku akv aoa aob aoe aog aok aoo aos aou aov as- asa asb ase asg ask aso ass asu asv au- aua aub aue aug auk auo aus auv av- ava avb ave avg avk avo avs avu b-u baa bab bae bag bak bao bas bau bav bba bbb bbe bbg bbk bbo bbs bbu be- bea beb bee beg bek beo bes beu bev bga bgb bge bgg bgk bgo bgs bgu bgv bka bkb bke bkg bkk bko bks bkv boa bob boe bog bok boo bos bou bov bsa bsb bse bsg bsk bso bss bsu bsv bua bub bue bug buk buo bus buu bva bvb bve bvg bvk bvo bvs bvu bvv eaa eab eae eag eak eao eas eau eav eba ebb ebe ebg ebk ebo ebs ebu ebv eea eeb eee eeg eek eeo ees eev ega egb ege egg ego egs egu eka ekb eke ekg eko eks eku ekv eo- eoa eob eoe eog eok eoo eos eou es- esa esb ese esg esk eso ess esu esv eu- eua eub eue eug eus euv eva evb eve evg evo evs evv gaa gab gae gag gak gao gas gau gav gba gbe gbg gbk gbo gbs gbu gbv ge- gea geb gee geg gek geo ges geu gev gga ggb ggg ggo ggs ggu ggv gka gkb gko gks goa gob goe gog gok goo gos gou gov gsa gsb gse gsg gsk gso gss gsu gsv gu- gua gub gue gug guk guo gus guu guv gva gvb gve gvg gvk gvo gvs gvu ka- kaa kab kae kag kak kao kas kau kav kba kbb kbe kbk kbo kbs kbu ke- kea keb kee keg kek keo kes kev kga kgb kgo kgs kgu kgv kkb kke kkk kks kku kkv koa kob koe kog kok koo kos kou ksa ksb kse ksg ksk kso kss ksu ksv kub kue kug kuk kus kuu kva kvb kvk kvo kvs kvv oaa oab oae oag oak oao oas oau oav ob- oba obb obe obg obk obo obs obu obv oea oeb oee oeg oeo oes oga oge ogg ogo ogs oka okb oke okg okk oko oks oku oo- ooa oob oog ook ooo oos oov os- osa osb ose osg osk oso oss osu osv ou- oua oue ouk ouo ous ov- ova ovb ove ovo ovs ovv saa sab sae sag sak sao sas sau sav sba sbb sbe sbg sbk sbo sbs sbu sbv se- sea seb see seg sek seo ses seu sev sga sgb sge sgg sgk sgo sgs sgu sgv sk- ska skb ske skg skk sko sks sku soa sob soe sog sok soo sos sou sov ss- ssa ssb sse ssg ssk sso sss ssu ssv sua sub sue sug suk suo sus suu suv sva svb sve svg svk svo svs svu svv ua- uaa uab uae uag uak uao uas uau uav uba ubb ube ubg ubk ubo ubs ubu ubv uea ueb uee ueg ues uga ugb uge ugg ugk ugo ugs ugu uka ukb uke ukk uku uoa uob uoe uog uok uoo uos usa usb use usg usk uso uss usu usv uua uue uug uus uuu uva uvb uve uvo uvs uvu uvv v-a v-e vaa vab vae vag vak vao vas vau vav vba vbg vbk vbo vbs vbv vea veb vee veg vek veo ves veu vga vgg vgo vgs vgu vka vkb vkg voa vob voe vog vok voo vos vou vov vsa vsb vse vsg vsk vso vss vsu vsv vue vug vuk vus vuv vva vvb vvg vvo vvs vvv