-al a-a a-b a-t a-z aaa aab aae aal aat aaz ab- aba abb abe abl abt abz aea aeb aee ael aet aez al- ala alb ale all alt alz at- ata atb ate atl att atz az- aza azb aze azt azz baa bab bae bal bat baz bba bbb bbe bbl bbt be- bea beb bee bel bet bez bla blb ble bll blt blz bta btb bte btl btt btz bza bze bzz eaa eab eae eal eat eaz eba ebb ebe ebl ebt eea eeb eee eel eet ela elb ele ell elt elz eta etb ete etl ett etz eze ezz la- laa lab lae lal lat laz lba lbb lbe lbl lbt lea leb lee lel let lez lla llb lle lll llt llz lta ltb lte ltl ltt ltz taa tab tae tal tat taz tba tbb tbe tbl tbt tbz te- tea teb tee tel tet tez tla tle tll tlt tlz tta ttb tte ttl ttt tza tze zaa zab zat zaz zbb zbl zbt zea zeb zee zel zet zez zla zlt zta zte ztl zzt zzz