-al a-a a-b aaa aab aae aal aav ab- aba abb abe abl abv aea aeb aee ael aev al- ala alb ale all alv av- ava avb ave avl baa bab bae bal bav bba bbb bbe bbl be- bea beb bee bel bev bla blb ble bll blv bva bvb bve bvl bvv eaa eab eae eal eav eba ebb ebe ebl ebv eea eeb eee eel eev ela elb ele ell elv eva evb eve evl evv la- laa lab lae lal lav lba lbb lbe lbl lbv lea leb lee lel lev lla llb lle lll llv lva lvb lve lvl lvv v-a v-e vaa vab vae val vav vba vbl vbv vea veb vee vel vl- vla vlb vle vll vlv vva vvb vvv