-al a-a a-b aaa aab aae aag aal aas aav ab- aba abb abe abg abl abs abv aea aeb aee aeg ael aes aev ag- aga agb age agg agl ags agv al- ala alb ale alg all als alv as- asa asb ase asg asl ass asv av- ava avb ave avg avl avs baa bab bae bag bal bas bav bba bbb bbe bbg bbl bbs be- bea beb bee beg bel bes bev bga bgb bge bgg bgl bgs bgv bla blb ble blg bll bls blv bsa bsb bse bsg bsl bss bsv bva bvb bve bvg bvl bvs bvv eaa eab eae eag eal eas eav eba ebb ebe ebg ebl ebs ebv eea eeb eee eeg eel ees eev ega egb ege egg egl egs ela elb ele elg ell els elv es- esa esb ese esg esl ess esv eva evb eve evg evl evs evv gaa gab gae gag gal gas gav gba gbe gbg gbl gbs gbv ge- gea geb gee geg gel ges gev gga ggb ggg ggs ggv gla glb gle glg gll gls glv gsa gsb gse gsg gsl gss gsv gva gvb gve gvg gvl gvs la- laa lab lae lag lal las lav lba lbb lbe lbg lbl lbs lbv lea leb lee leg lel les lev lga lgb lge lgg lgl lgs lgv lla llb lle llg lll lls llv lsa lsb lse lsg lsl lss lsv lva lvb lve lvg lvl lvs lvv saa sab sae sag sal sas sav sba sbb sbe sbg sbl sbs sbv se- sea seb see seg sel ses sev sga sgb sge sgg sgl sgs sgv sla slb sle slg sll sls slv ss- ssa ssb sse ssg ssl sss ssv sva svb sve svg svl svs svv v-a v-e vaa vab vae vag val vas vav vba vbg vbl vbs vbv vea veb vee veg vel ves vga vgg vgl vgs vl- vla vlb vle vll vls vlv vsa vsb vse vsg vsl vss vsv vva vvb vvg vvs vvv