-al -ol a-a a-b a-c aaa aab aac aae aag aal aan aao aau ab- aba abb abc abe abg abl abn abo abu ac- aca acb acc ace acg acl acn aco acu aea aeb aec aee aeg ael aen aeo aeu ag- aga agb agc age agg agl agn ago agu al- ala alb alc ale alg all aln alo alu an- ana anb anc ane ang anl ann ano anu aoa aob aoc aoe aog aol aon aoo aou au- aua aub auc aue aug aul aun auo b-u baa bab bac bae bag bal ban bao bau bba bbb bbc bbe bbg bbl bbn bbo bbu bca bcb bcc bce bcg bcl bcn bco bcu be- bea beb bec bee beg bel ben beo beu bga bgb bgc bge bgg bgl bgn bgo bgu bla blb blc ble blg bll bln blo blu bna bnb bnc bne bng bnl bnn bno bnu boa bob boc boe bog bol bon boo bou bua bub buc bue bug bul bun buo buu c-- caa cab cac cae cag cal can cao cau cba cbb cbc cbe cbg cbl cbn cbo cbu cca ccb ccc cce ccg ccl ccn cco ccu ce- cea ceb cec cee ceg cel cen ceo ceu cga cgb cgc cge cgg cgl cgn cgo cgu cl- cla clb clc cle clg cll cln clo clu cn- cna cnb cnc cne cng cnl cnn cno cnu co- coa cob coc coe cog col con coo cou cua cub cuc cue cug cul cun cuo cuu eaa eab eac eae eag eal ean eao eau eba ebb ebc ebe ebg ebl ebn ebo ebu ec- eca ecb ecc ece ecg ecl ecn eco ecu eea eeb eec eee eeg eel een eeo ega egb egc ege egg egl egn ego egu ela elb elc ele elg ell eln elo elu en- ena enb enc ene eng enl enn eno enu eo- eoa eob eoc eoe eog eol eon eoo eou eu- eua eub euc eue eug eul eun gaa gab gac gae gag gal gan gao gau gba gbc gbe gbg gbl gbn gbo gbu gca gcb gcc gce gcg gcl gcn gco gcu ge- gea geb gec gee geg gel gen geo geu gga ggb ggc ggg ggn ggo ggu gla glb glc gle glg gll gln glo glu gna gnb gnc gne gnl gnn gno gnu goa gob goc goe gog gol gon goo gou gu- gua gub guc gue gug gul gun guo guu la- laa lab lac lae lag lal lan lao lau lba lbb lbc lbe lbg lbl lbo lbu lca lcb lcc lce lcg lcl lcn lco lcu lea leb lec lee leg lel len leo leu lga lgb lgc lge lgg lgl lgn lgo lgu lla llb llc lle llg lll lln llo llu lna lnb lnc lne lng lnl lnn lno lnu loa lob loc loe log lol lon loo lou lua lub luc lue lug lul lun luo luu naa nab nac nae nag nal nan nao nau nba nbb nbc nbe nbg nbl nbn nbo nbu nca ncb ncc nce ncg ncl ncn nco ncu ne- nea neb nec nee neg nel nen neo neu nga ngb ngc nge ngg ngl ngn ngo ngu nla nlb nlc nle nlg nll nln nlo nlu nna nnb nnc nne nng nnl nnn nno nnu no- noa nob noc noe nog nol non noo nou nua nub nuc nue nug nul nun nuo nuu oaa oab oac oae oag oal oan oao oau ob- oba obb obc obe obg obl obn obo obu oc- oca ocb occ ocg ocl ocn oco ocu oea oeb oec oee oeg oel oen oeo oga ogc oge ogg ogl ogn ogo ola olb olc ole olg oll oln olo olu on- ona onb onc one ong onl onn ono onu oo- ooa oob ooc oog ool oon ooo ou- oua ouc oue oul oun ouo ua- uaa uab uac uae uag ual uan uao uau uba ubb ubc ube ubg ubl ubn ubo ubu uca ucb ucc uce ucg ucl ucn uco ucu uea ueb uec uee ueg uel uen uga ugb ugc uge ugg ugl ugn ugo ugu ula ulb ulc ule ulg ull uln ulo ulu un- una unb unc une ung unl unn uno unu uoa uob uoc uoe uog uol uon uoo uua uuc uue uug uun uuu