-al -er a-a a-b aaa aab aae aag aal aar aav ab- aba abb abe abg abl abr abv aea aeb aee aeg ael aer aev ag- aga agb age agg agl agr agv al- ala alb ale alg all alr alv ar- ara arb are arg arl arr arv av- ava avb ave avg avl avr baa bab bae bag bal bar bav bba bbb bbe bbg bbl bbr be- bea beb bee beg bel ber bev bga bgb bge bgg bgl bgr bgv bla blb ble blg bll blr blv bra brb bre brg brl brr brv bva bvb bve bvg bvl bvr bvv eaa eab eae eag eal ear eav eba ebb ebe ebg ebl ebr ebv eea eeb eee eeg eel eer eev ega egb ege egg egl egr ela elb ele elg ell elr elv era erb ere erg erl err erv eva evb eve evg evl evr evv gaa gab gae gag gal gar gav gba gbe gbg gbl gbr gbv ge- gea geb gee geg gel ger gev gga ggb ggg ggr ggv gla glb gle glg gll glr glv gra grb gre grg grl grr grv gva gvb gve gvg gvl gvr la- laa lab lae lag lal lar lav lba lbb lbe lbg lbl lbr lbv lea leb lee leg lel ler lev lga lgb lge lgg lgl lgr lgv lla llb lle llg lll llr llv lra lrb lrg lrr lrv lva lvb lve lvg lvl lvr lvv ra- raa rab rae rag ral rar rav rba rbb rbe rbg rbl rbr re- rea reb ree reg rel rer rev rga rgb rge rgg rgr rgv rla rle rlg rll rlr rra rrb rrg rrl rrr rva rvb rve rvg rvl rvr rvv v-a v-e vaa vab vae vag val var vav vba vbg vbl vbr vbv vea veb vee veg vel ver vga vgg vgl vgr vl- vla vlb vle vll vlv vra vrb vre vrg vrr vva vvb vvg vvr vvv