-al -er a-a a-b aaa aab aad aae aag aal aar ab- aba abb abd abe abg abl abr ad- ada adb add ade adg adl adr aea aeb aed aee aeg ael aer ag- aga agb agd age agg agl agr al- ala alb ald ale alg all alr ar- ara arb ard are arg arl arr baa bab bad bae bag bal bar bba bbb bbd bbe bbg bbl bbr bda bdb bdd bde bdg bdl bdr be- bea beb bed bee beg bel ber bga bgb bgd bge bgg bgl bgr bla blb bld ble blg bll blr bra brb brd bre brg brl brr daa dab dad dae dag dal dar dba dbb dbd dbe dbg dbl dbr dda ddb ddd dde ddg ddl ddr de- dea deb ded dee deg del der dga dgd dge dgg dgl dgr dl- dla dlb dld dle dlg dll dlr dra drb drd dre drg drl drr eaa eab ead eae eag eal ear eba ebb ebd ebe ebg ebl ebr ed- eda edb edd ede edg edl edr eea eeb eed eee eeg eel eer ega egb egd ege egg egl egr ela elb eld ele elg ell elr era erb erd ere erg erl err g-d gaa gab gad gae gag gal gar gba gbd gbe gbg gbl gbr gda gdb gdd gde gdl gdr ge- gea geb ged gee geg gel ger gga ggb ggd ggg ggr gla glb gld gle glg gll glr gra grb grd gre grg grl grr la- laa lab lad lae lag lal lar lba lbb lbd lbe lbg lbl lbr lda ldb ldd lde ldg ldl ldr lea leb led lee leg lel ler lga lgb lgd lge lgg lgl lgr lla llb lld lle llg lll llr lra lrb lrd lrg lrr ra- raa rab rad rae rag ral rar rba rbb rbd rbe rbg rbl rbr rda rdb rdd rde rdg rdl rdr re- rea reb red ree reg rel rer rga rgb rgd rge rgg rgr rla rld rle rlg rll rlr rra rrb rrd rrg rrl rrr