-al -er a-a a-b aaa aab aae aal aar aav ab- aba abb abe abl abr abv aea aeb aee ael aer aev al- ala alb ale all alr alv ar- ara arb are arl arr arv av- ava avb ave avl avr baa bab bae bal bar bav bba bbb bbe bbl bbr be- bea beb bee bel ber bev bla blb ble bll blr blv bra brb bre brl brr brv bva bvb bve bvl bvr bvv eaa eab eae eal ear eav eba ebb ebe ebl ebr ebv eea eeb eee eel eer eev ela elb ele ell elr elv era erb ere erl err erv eva evb eve evl evr evv la- laa lab lae lal lar lav lba lbb lbe lbl lbr lbv lea leb lee lel ler lev lla llb lle lll llr llv lra lrb lrr lrv lva lvb lve lvl lvr lvv ra- raa rab rae ral rar rav rba rbb rbe rbl rbr re- rea reb ree rel rer rev rla rle rll rlr rra rrb rrl rrr rva rvb rve rvl rvr rvv v-a v-e vaa vab vae val var vav vba vbl vbr vbv vea veb vee vel ver vl- vla vlb vle vll vlv vra vrb vre vrr vva vvb vvr vvv