-al a-a a-b a-c aaa aab aac aae aag aal aam aau ab- aba abb abc abe abg abl abm abu ac- aca acb acc ace acg acl acm acu aea aeb aec aee aeg ael aem aeu ag- aga agb agc age agg agl agm agu al- ala alb alc ale alg all alm alu ama amb amc ame amg aml amm amu au- aua aub auc aue aug aul aum b-u baa bab bac bae bag bal bam bau bba bbb bbc bbe bbg bbl bbm bbu bca bcb bcc bce bcg bcl bcm bcu be- bea beb bec bee beg bel bem beu bga bgb bgc bge bgg bgl bgm bgu bla blb blc ble blg bll blm blu bma bmb bmc bme bmg bml bmm bmu bua bub buc bue bug bul bum buu c-- caa cab cac cae cag cal cam cau cba cbb cbc cbe cbg cbl cbm cbu cca ccb ccc cce ccg ccl ccm ccu ce- cea ceb cec cee ceg cel cem ceu cga cgb cgc cge cgg cgl cgm cgu cl- cla clb clc cle clg cll clm clu cma cmb cmc cme cmg cml cmm cmu cua cub cuc cue cug cul cum cuu eaa eab eac eae eag eal eam eau eba ebb ebc ebe ebg ebl ebm ebu ec- eca ecb ecc ece ecg ecl ecm ecu eea eeb eec eee eeg eel eem ega egb egc ege egg egl egm egu ela elb elc ele elg ell elm elu em- ema emb emc eme emg eml emm emu eu- eua eub euc eue eug eul gaa gab gac gae gag gal gam gau gba gbc gbe gbg gbl gbm gbu gca gcb gcc gce gcg gcl gcm gcu ge- gea geb gec gee geg gel gem geu gga ggb ggc ggg ggm ggu gla glb glc gle glg gll glm glu gma gmb gmc gme gmg gml gmm gu- gua gub guc gue gug gul gum guu la- laa lab lac lae lag lal lam lau lba lbb lbc lbe lbg lbl lbm lbu lca lcb lcc lce lcg lcl lcm lcu lea leb lec lee leg lel lem leu lga lgb lgc lge lgg lgl lgm lgu lla llb llc lle llg lll llm llu lma lmb lmc lme lmg lml lmm lmu lua lub luc lue lug lul lum luu maa mab mac mae mag mal mam mau mba mbb mbc mbe mbg mbl mbm mbu mc- mca mcb mcc mce mcg mcl mcm mcu mea meb mec mee meg mel mem meu mga mgb mgc mge mgl mgm mgu mla mlb mlc mle mlg mll mlm mlu mma mmb mmc mme mmg mml mmm mmu mua mub muc mue mug mul mum muu ua- uaa uab uac uae uag ual uam uau uba ubb ubc ube ubg ubl ubu uca ucb ucc uce ucg ucl ucm ucu uea ueb uec uee ueg uel uem uga ugb ugc uge ugg ugl ugm ugu ula ulb ulc ule ulg ull ulm ulu um- uma umb umc ume umg uml umm umu uua uuc uue uug uum uuu