-er a-a a-b aaa aab aad aae aag aan aar aau aav ab- aba abb abd abe abg abn abr abu abv ad- ada adb add ade adg adn adr adu adv aea aeb aed aee aeg aen aer aeu aev ag- aga agb agd age agg agn agr agu agv an- ana anb and ane ang ann anr anu anv ar- ara arb ard are arg arn arr aru arv au- aua aub aud aue aug aun aur auv av- ava avb avd ave avg avn avr avu b-u baa bab bad bae bag ban bar bau bav bba bbb bbd bbe bbg bbn bbr bbu bda bdb bdd bde bdg bdr bdu bdv be- bea beb bed bee beg ben ber beu bev bga bgb bgd bge bgg bgn bgr bgu bgv bna bnb bnd bne bng bnn bnr bnu bnv bra brb brd bre brg brn brr bru brv bua bub bud bue bug bun bur buu bva bvb bvd bve bvg bvn bvr bvu bvv daa dab dad dae dag dan dar dau dav dba dbb dbd dbe dbg dbn dbr dbu dbv dda ddb ddd dde ddg ddn ddr ddu de- dea deb ded dee deg den der deu dev dga dgd dge dgg dgn dgr dgu dna dnb dnd dne dng dnn dnr dra drb drd dre drg drn drr dru drv dua dub dud due dug dun dur duv dva dvb dvd dve dvg dvn dvr dvu eaa eab ead eae eag ean ear eau eav eba ebb ebd ebe ebg ebn ebr ebu ebv ed- eda edb edd ede edg edn edr edu eea eeb eed eee eeg een eer eev ega egb egd ege egg egn egr egu en- ena enb end ene eng enn enr enu env era erb erd ere erg ern err eru erv eu- eua eub eud eue eug eun eur euv eva evb evd eve evg evn evr evv g-d gaa gab gad gae gag gan gar gau gav gba gbd gbe gbg gbn gbr gbu gbv gda gdb gdd gde gdn gdr gdu gdv ge- gea geb ged gee geg gen ger geu gev gga ggb ggd ggg ggn ggr ggu ggv gna gnb gnd gne gnn gnr gnu gnv gra grb grd gre grg grn grr gru grv gu- gua gub gud gue gug gun gur guu guv gva gvb gvd gve gvg gvn gvr gvu naa nab nad nae nag nan nar nau nav nba nbb nbd nbe nbg nbn nbr nbu nbv nda ndb ndd nde ndg ndn ndr ndu ndv ne- nea neb ned nee neg nen ner neu nev nga ngb ngd nge ngg ngn ngu nna nnb nne nng nnn nnu nnv nra nrb nrd nre nrg nrn nrr nru nrv nua nub nud nue nug nun nur nuu nuv nva nvb nvd nve nvg nvn nvu nvv ra- raa rab rad rae rag ran rar rau rav rba rbb rbd rbe rbg rbn rbr rbu rda rdb rdd rde rdg rdn rdr rdu rdv re- rea reb red ree reg ren rer reu rev rga rgb rgd rge rgg rgn rgr rgv rna rnb rnd rng rnn rnr rnu rnv rra rrb rrd rrg rrn rrr rru rua rub rud rue rug run rur ruu ruv rva rvb rvd rve rvg rvn rvr rvu rvv ua- uaa uab uad uae uag uan uar uau uav uba ubb ube ubg ubn ubr ubu ubv uda udb udd ude udg udn udr udu udv uea ueb ued uee ueg uen uer uga ugb uge ugg ugn ugr ugu un- una unb und une ung unn unr unu unv ur- ura urb urd ure urg urn urr uru uua uue uug uun uur uuu uva uvb uve uvu uvv v-a v-e vaa vab vad vae vag van var vau vav vba vbd vbg vbr vbv vdb vdd vde vdg vdr vdu vdv vea veb ved vee veg ven ver veu vga vgg vgn vgr vgu vn- vna vnd vng vnr vnu vnv vra vrb vrd vre vrg vrn vrr vru vue vug vur vuv vva vvb vvg vvr vvv