a-a a-b aaa aab aag aan aao aar aau aav ab- aba abb abg abn abo abr abu abv ag- aga agb agg agn ago agr agu agv an- ana anb ang ann ano anr anu anv aoa aob aog aon aoo aor aou aov ar- ara arb arg arn aro arr aru arv au- aua aub aug aun auo aur auv av- ava avb avg avn avo avr avu b-u baa bab bag ban bao bar bau bav bba bbb bbg bbn bbo bbr bbu bga bgb bgg bgn bgo bgr bgu bgv bna bnb bng bnn bno bnr bnu bnv boa bob bog bon boo bor bou bov bra brb brg brn bro brr bru brv bua bub bug bun buo bur buu bva bvb bvg bvn bvo bvr bvu bvv gaa gab gag gan gao gar gau gav gba gbg gbn gbo gbr gbu gbv gga ggb ggg ggn ggo ggr ggu ggv gna gnb gnn gno gnr gnu gnv goa gob gog gon goo gor gou gov gra grb grg grn gro grr gru grv gu- gua gub gug gun guo gur guu guv gva gvb gvg gvn gvo gvr gvu naa nab nag nan nao nar nau nav nba nbb nbg nbn nbo nbr nbu nbv nga ngb ngg ngn ngo ngu nna nnb nng nnn nno nnu nnv no- noa nob nog non noo nor nou nov nra nrb nrg nrn nro nrr nru nrv nua nub nug nun nuo nur nuu nuv nva nvb nvg nvn nvu nvv oaa oab oag oan oao oar oau oav ob- oba obb obg obn obo obr obu obv oga ogg ogn ogo on- ona onb ong onn ono onr onu oo- ooa oob oog oon ooo oor oov or- ora orb org orn oro orr oru orv ou- oua oun ouo our ov- ova ovb ovo ovv ra- raa rab rag ran rao rar rau rav rba rbb rbg rbn rbo rbr rbu rga rgb rgg rgn rgo rgr rgv rna rnb rng rnn rno rnr rnu rnv roa rob rog ron roo ror rou rov rra rrb rrg rrn rrr rru rua rub rug run ruo rur ruu ruv rva rvb rvg rvn rvo rvr rvu rvv ua- uaa uab uag uan uao uar uau uav uba ubb ubg ubn ubo ubr ubu ubv uga ugb ugg ugn ugo ugr ugu un- una unb ung unn uno unr unu unv uoa uob uog uon uoo uor ur- ura urb urg urn uro urr uru uua uug uun uur uuu uva uvb uvo uvu uvv v-a vaa vab vag van vao var vau vav vba vbg vbo vbr vbv vga vgg vgn vgo vgr vgu vn- vna vng vno vnr vnu vnv voa vob vog von voo vor vou vov vra vrb vrg vrn vrr vru vug vur vuv vva vvb vvg vvo vvr vvv

-ana a-un aaaa aaab aaan aaar aaav aaba aabb aana aang aaon aaoo aara aaro aaru aava abaa abab abag aban abar abau abb- abba abbb abbo abbr abnu aboa abob abon aboo abor abou abov abra abro abua abug abun abva ag-o agag agan agao agar agau agav agba agbo agga aggu agna agno agob agog agon agoo agou agra agro agua agun agur agva ana- anaa anab anag anan anao anar anau anba anbb anbo anbu ang- anga ango angu anna annb anno ano- anoa anon anor anua anub anun aoba aonb aono aora aorb aorn aoun arab arag aran arar arau arba arga argb argo arna arng arno aroa arob aron aroo aror arr- arra arrg arro arrr arru arua arub arug arun arva arvn arvo auaa auga auna aung aur- aura auro auug avab avan avao avar avgo avon avor avou avra avro avun avur avva avvo baaa baan baar baba babb babo babr babu baga bagg bagn bago bana bang bann bano banr banu baon bar- bara barb barg barn baro barr baru bau- baug baur bava bavu bbau bbbb bbga bbng bbrg bgan bgon bgun bnor bnrr boab boag boan boar boba bobb bobo bobu boga bogg bogo bona bong bonn bono bonu boob boog boon boor bor- bora borg born boro borr boru boua boun bour bova bovo brab brag bran brao brau brav brna brno broa brob brog bron broo bror brou brrr brug brun bruv buar buba bubb bubo bubu buga bugg bugo buna bunb bung bunn buno bunu buon bur- bura burb burg burn buro burr buru gaar gaba gabb gabo gabr gabu gaga gagg gago gagu gana gang gann gano ganu gaon gara garb garg garn garo garr garv gaua gaub gaun gaur gava gbag gban gbbo gbon gggg ggrn gnaa gnar gnau gnav gnoo gnrr goan goar goba gobo goga gogo gon- gona gong gonn gono gonu goog goon goor gora gorb gorg gorn goro gorr gou- goug goun gour grab gran grau grav grbr grob grog gron groo gror grou grov grrr grua grub grug grun grur guaa guag guan guao guar guba gubb gubu guga gugb gugg gugu guna gung gunn gura gurb gurg gurn guro gurr guru guva gvvv naaa naab naag naan naar naba nabo nabu naga nago nagu nan- nana nanb nang nann nano nanu naor nara narg narn naro narr naru nauo naur nava navo navr navv nbaa nbar nbbo ngab ngan ngao ngon ngor ngou ngur nguu nngn nnnn noaa noba nobo nobu noga nogg nogo non- nona nong nonn nono nonu noo- noob noon nooo noor noov nor- nora norb norg norn noro norr norv noun nour nov- nova novo nrab nrna nron nuan nuba nuna nung nunn nuno nuon nura nurn nurr nuru nurv nuva nuvo oaau oara oban obba obbo obon obor obra obro ogar ogb ogba ogna ogoa ogog ogon ogou ogra ogro ogun onab onan onar onga ongo ongu onna onno onon onor onra onur ooaa ooba oona oooo oora orab oran orao orar orav orba orbb orbo orbu orga orgn orgo orna orno oro- oron oror