-al a-a a-b aaa aab aag aal aan aar aau aav ab- aba abb abg abl abn abr abu abv ag- aga agb agg agl agn agr agu agv al- ala alb alg all aln alr alu alv an- ana anb ang anl ann anr anu anv ar- ara arb arg arl arn arr aru arv au- aua aub aug aul aun aur auv av- ava avb avg avl avn avr avu b-u baa bab bag bal ban bar bau bav bba bbb bbg bbl bbn bbr bbu bga bgb bgg bgl bgn bgr bgu bgv bla blb blg bll bln blr blu blv bna bnb bng bnl bnn bnr bnu bnv bra brb brg brl brn brr bru brv bua bub bug bul bun bur buu bva bvb bvg bvl bvn bvr bvu bvv gaa gab gag gal gan gar gau gav gba gbg gbl gbn gbr gbu gbv gga ggb ggg ggn ggr ggu ggv gla glb glg gll gln glr glu glv gna gnb gnl gnn gnr gnu gnv gra grb grg grl grn grr gru grv gu- gua gub gug gul gun gur guu guv gva gvb gvg gvl gvn gvr gvu la- laa lab lag lal lan lar lau lav lba lbb lbg lbl lbr lbu lbv lga lgb lgg lgl lgn lgr lgu lgv lla llb llg lll lln llr llu llv lna lnb lng lnl lnn lnr lnu lra lrb lrg lrn lrr lru lrv lua lub lug lul lun lur luu luv lva lvb lvg lvl lvn lvr lvv naa nab nag nal nan nar nau nav nba nbb nbg nbl nbn nbr nbu nbv nga ngb ngg ngl ngn ngu nla nlb nlg nll nln nlr nlu nlv nna nnb nng nnl nnn nnu nnv nra nrb nrg nrl nrn nrr nru nrv nua nub nug nul nun nur nuu nuv nva nvb nvg nvl nvn nvu nvv ra- raa rab rag ral ran rar rau rav rba rbb rbg rbl rbn rbr rbu rga rgb rgg rgn rgr rgv rla rlg rll rln rlr rlu rna rnb rng rnn rnr rnu rnv rra rrb rrg rrl rrn rrr rru rua rub rug run rur ruu ruv rva rvb rvg rvl rvn rvr rvu rvv ua- uaa uab uag ual uan uar uau uav uba ubb ubg ubl ubn ubr ubu ubv uga ugb ugg ugl ugn ugr ugu ula ulb ulg ull uln ulr ulu ulv un- una unb ung unl unn unr unu unv ur- ura urb urg url urn urr uru uua uug uun uur uuu uva uvb uvl uvu uvv v-a vaa vab vag val van var vau vav vba vbg vbl vbr vbv vga vgg vgl vgn vgr vgu vl- vla vlb vll vlv vn- vna vng vnl vnr vnu vnv vra vrb vrg vrn vrr vru vug vul vur vuv vva vvb vvg vvr vvv