-al a-a a-b aaa aab aad aae aag aal aan aau ab- aba abb abd abe abg abl abn abu ad- ada adb add ade adg adl adn adu aea aeb aed aee aeg ael aen aeu ag- aga agb agd age agg agl agn agu al- ala alb ald ale alg all aln alu an- ana anb and ane ang anl ann anu au- aua aub aud aue aug aul aun b-u baa bab bad bae bag bal ban bau bba bbb bbd bbe bbg bbl bbn bbu bda bdb bdd bde bdg bdl bdu be- bea beb bed bee beg bel ben beu bga bgb bgd bge bgg bgl bgn bgu bla blb bld ble blg bll bln blu bna bnb bnd bne bng bnl bnn bnu bua bub bud bue bug bul bun buu daa dab dad dae dag dal dan dau dba dbb dbd dbe dbg dbl dbn dbu dda ddb ddd dde ddg ddl ddn ddu de- dea deb ded dee deg del den deu dga dgd dge dgg dgl dgn dgu dl- dla dlb dld dle dlg dll dlu dna dnb dnd dne dng dnl dnn dua dub dud due dug dul dun eaa eab ead eae eag eal ean eau eba ebb ebd ebe ebg ebl ebn ebu ed- eda edb edd ede edg edl edn edu eea eeb eed eee eeg eel een ega egb egd ege egg egl egn egu ela elb eld ele elg ell eln elu en- ena enb end ene eng enl enn enu eu- eua eub eud eue eug eul eun g-d gaa gab gad gae gag gal gan gau gba gbd gbe gbg gbl gbn gbu gda gdb gdd gde gdl gdn gdu ge- gea geb ged gee geg gel gen geu gga ggb ggd ggg ggn ggu gla glb gld gle glg gll gln glu gna gnb gnd gne gnl gnn gnu gu- gua gub gud gue gug gul gun guu la- laa lab lad lae lag lal lan lau lba lbb lbd lbe lbg lbl lbu lda ldb ldd lde ldg ldl ldn ldu lea leb led lee leg lel len leu lga lgb lgd lge lgg lgl lgn lgu lla llb lld lle llg lll lln llu lna lnb lnd lne lng lnl lnn lnu lua lub lud lue lug lul lun luu naa nab nad nae nag nal nan nau nba nbb nbd nbe nbg nbl nbn nbu nda ndb ndd nde ndg ndl ndn ndu ne- nea neb ned nee neg nel nen neu nga ngb ngd nge ngg ngl ngn ngu nla nlb nld nle nlg nll nln nlu nna nnb nne nng nnl nnn nnu nua nub nud nue nug nul nun nuu ua- uaa uab uad uae uag ual uan uau uba ubb ube ubg ubl ubn ubu uda udb udd ude udg udl udn udu uea ueb ued uee ueg uel uen uga ugb uge ugg ugl ugn ugu ula ulb uld ule ulg ull uln ulu un- una unb und une ung unl unn unu uua uue uug uun uuu