-al -ol a-a a-b a-t aaa aab aae aaf aal aao aat aau ab- aba abb abe abf abl abo abt abu aea aeb aee aef ael aeo aet aeu af- afa afb afe aff afl afo aft afu al- ala alb ale alf all alo alt alu aoa aob aoe aof aol aoo aot aou at- ata atb ate atf atl ato att atu au- aua aub aue auf aul auo aut b-u baa bab bae baf bal bao bat bau bba bbb bbe bbf bbl bbo bbt bbu be- bea beb bee bef bel beo bet beu bfa bfb bfe bff bfl bfo bft bfu bla blb ble blf bll blo blt blu boa bob boe bof bol boo bot bou bta btb bte btf btl bto btt btu bua bub bue buf bul buo but buu eaa eab eae eaf eal eao eat eau eba ebb ebe ebf ebl ebo ebt ebu eea eeb eee eef eel eeo eet ef- efa efb efe eff efl efo eft ela elb ele elf ell elo elt elu eo- eoa eob eoe eof eol eoo eot eou eta etb ete etf etl eto ett etu eu- eua eub eue euf eul eut faa fab fae faf fal fao fat fau fba fbb fbe fbf fbl fbo fbt fbu fea feb fee fef fel feo fet feu ffa ffe fff ffl ffo fft ffu fla flb fle flf fll flo flt flu foa fob foe fof fol foo fot fou fta ftb fte ftf ftl fto ftt ftu fua fub fue fuf ful fuo fut fuu la- laa lab lae laf lal lao lat lau lba lbb lbe lbf lbl lbo lbt lbu lea leb lee lef lel leo let leu lfa lfb lfe lff lfl lfo lft lfu lla llb lle llf lll llo llt llu loa lob loe lof lol loo lot lou lta ltb lte ltf ltl lto ltt ltu lua lub lue luf lul luo lut luu oaa oab oae oaf oal oao oat oau ob- oba obb obe obf obl obo obt obu oea oeb oee oef oel oeo oet of- ofa ofb ofe off ofl ofo oft ofu ola olb ole olf oll olo olt olu oo- ooa oob oof ool ooo oot ot- ota otb ote otf otl oto ott otu ou- oua oue ouf oul ouo out taa tab tae taf tal tao tat tau tba tbb tbe tbf tbl tbo tbt tbu te- tea teb tee tef tel teo tet teu tfa tfb tfe tff tfl tfo tft tfu tla tle tlf tll tlo tlt tlu to- toa tob toe tof tol too tot tou tta ttb tte ttf ttl tto ttt ttu tua tub tue tuf tul tuo tut tuu ua- uaa uab uae uaf ual uao uat uau uba ubb ube ubf ubl ubo ubt ubu uea ueb uee uef uel uet ufa ufe uff ufl ufo uft ufu ula ulb ule ulf ull ulo ult ulu uoa uob uoe uol uoo uot uta utb ute utf utl uto utt utu uua uue uut uuu