-al a-a a-b aaa aab aad aae aal aan aau ab- aba abb abd abe abl abn abu ad- ada adb add ade adl adn adu aea aeb aed aee ael aen aeu al- ala alb ald ale all aln alu an- ana anb and ane anl ann anu au- aua aub aud aue aul aun b-u baa bab bad bae bal ban bau bba bbb bbd bbe bbl bbn bbu bda bdb bdd bde bdl bdu be- bea beb bed bee bel ben beu bla blb bld ble bll bln blu bna bnb bnd bne bnl bnn bnu bua bub bud bue bul bun buu daa dab dad dae dal dan dau dba dbb dbd dbe dbl dbn dbu dda ddb ddd dde ddl ddn ddu de- dea deb ded dee del den deu dl- dla dlb dld dle dll dlu dna dnb dnd dne dnl dnn dua dub dud due dul dun eaa eab ead eae eal ean eau eba ebb ebd ebe ebl ebn ebu ed- eda edb edd ede edl edn edu eea eeb eed eee eel een ela elb eld ele ell eln elu en- ena enb end ene enl enn enu eu- eua eub eud eue eul eun la- laa lab lad lae lal lan lau lba lbb lbd lbe lbl lbu lda ldb ldd lde ldl ldn ldu lea leb led lee lel len leu lla llb lld lle lll lln llu lna lnb lnd lne lnl lnn lnu lua lub lud lue lul lun luu naa nab nad nae nal nan nau nba nbb nbd nbe nbl nbn nbu nda ndb ndd nde ndl ndn ndu ne- nea neb ned nee nel nen neu nla nlb nld nle nll nln nlu nna nnb nne nnl nnn nnu nua nub nud nue nul nun nuu ua- uaa uab uad uae ual uan uau uba ubb ube ubl ubn ubu uda udb udd ude udl udn udu uea ueb ued uee uel uen ula ulb uld ule ull uln ulu un- una unb und une unl unn unu uua uue uun uuu