-al a-a a-b a-i aaa aab aae aai aal aau aav aax ab- aba abb abe abi abl abu abv abx aea aeb aee aei ael aeu aev aex ai- aia aib aie aii ail aiu aiv aix al- ala alb ale ali all alu alv alx au- aua aub aue aui aul auv aux av- ava avb ave avi avl avu avx ax- axa axe axi axl axv axx b-u baa bab bae bai bal bau bav bax bba bbb bbe bbi bbl bbu bbx be- bea beb bee bei bel beu bev bex bi- bia bib bie bii bil biu biv bix bla blb ble bli bll blu blv blx bua bub bue bui bul buu bux bva bvb bve bvi bvl bvu bvv bxb bxi bxl bxx eaa eab eae eai eal eau eav eax eba ebb ebe ebi ebl ebu ebv ebx eea eeb eee eel eev eex eia eib eie eii eil eiu eiv eix ela elb ele eli ell elu elv elx eu- eua eub eue eui eul euv eux eva evb eve evi evl evv ex- exa exe exi exl exu exx i-v ia- iaa iab iae iai ial iau iav iba ibb ibe ibi ibl ibu ibv ibx ie- iea iee iei iel iev iex iia iib iie iii iil iiu iix il- ila ilb ile ili ill ilu ilv ilx iu- iua iub iue iui iva ivb ive ivi ivl ivu ivv ivx ixe ixi ixl la- laa lab lae lai lal lau lav lax lba lbb lbe lbi lbl lbu lbv lbx lea leb lee lei lel leu lev lex lia lib lie lii lil liu liv lix lla llb lle lli lll llu llv lua lub lue lui lul luu luv lux lva lvb lve lvi lvl lvv lvx lxi lxv lxx ua- uaa uab uae uai ual uau uav uba ubb ube ubi ubl ubu ubv ubx uea ueb uee uei uel uia uib uie uii uil uiu ula ulb ule uli ull ulu ulv uua uue uuu uva uvb uve uvl uvu uvv uxb uxu v-a v-e vaa vab vae vai val vau vav vax vba vbi vbl vbv vea veb vee vei vel veu vex vi- via vib vie vii vil viu viv vix vl- vla vlb vle vll vlv vue vul vuv vva vvb vvi vvv vxa vxl vxv xaa xal xau xav xbe xbl xbx xee xel xeu xev xex xia xie xii xiu xiv xix xla xlb xli xlv xue xui xul xuv xvi xvl xxi xxl xxv xxx