-al -ly a-a a-b a-t aaa aab aal aat aax aay ab- aba abb abl abt abx aby al- ala alb all alt alx aly at- ata atb atl att atx ax- axa axl axt axx ay- aya ayl ayt ayx baa bab bal bat bax bay bba bbb bbl bbt bbx bby bla blb bll blt blx bly bta btb btl btt btx bty bxb bxl bxx by- bya byl byt la- laa lab lal lat lax lay lba lbb lbl lbt lbx lla llb lll llt lly lta ltb ltl ltt ltx lxx lya lyl lyt lyx t-x taa tab tal tat tax tay tba tbb tbl tbt tla tll tlt tlx tta ttb ttl ttt ttx tty txl txt tya tyl tyt xaa xal xat xbl xbx xla xlb xlt xtx xty xxl xxx xxy xyl xyy yaa yab yal yat yax yay ybl yby yll ylt yly yta ytl ytt yxa yxy yyb yyt yyy