-al a-a a-b aaa aab aad aae aaf aag aal ab- aba abb abd abe abf abg abl ad- ada adb add ade adf adg adl aea aeb aed aee aef aeg ael af- afa afb afd afe aff afg afl ag- aga agb agd age agf agg agl al- ala alb ald ale alf alg all baa bab bad bae baf bag bal bba bbb bbd bbe bbf bbg bbl bda bdb bdd bde bdf bdg bdl be- bea beb bed bee bef beg bel bfa bfb bfd bfe bff bfg bfl bga bgb bgd bge bgf bgg bgl bla blb bld ble blf blg bll daa dab dad dae daf dag dal dba dbb dbd dbe dbf dbg dbl dda ddb ddd dde ddf ddg ddl de- dea deb ded dee def deg del dfa dfb dfd dfe dff dfg dfl dga dgd dge dgf dgg dgl dl- dla dlb dld dle dlf dlg dll eaa eab ead eae eaf eag eal eba ebb ebd ebe ebf ebg ebl ed- eda edb edd ede edf edg edl eea eeb eed eee eef eeg eel ef- efa efb efd efe eff efg efl ega egb egd ege egf egg egl ela elb eld ele elf elg ell faa fab fad fae faf fag fal fba fbb fbd fbe fbf fbg fbl fda fdb fdd fde fdf fdg fdl fea feb fed fee fef feg fel ffa ffd ffe fff ffg ffl fga fgb fgd fge fgf fgg fgl fla flb fld fle flf flg fll g-d gaa gab gad gae gaf gag gal gba gbd gbe gbf gbg gbl gda gdb gdd gde gdf gdl ge- gea geb ged gee gef geg gel gfa gfb gfd gfe gff gfl gga ggb ggd ggg gla glb gld gle glf glg gll la- laa lab lad lae laf lag lal lba lbb lbd lbe lbf lbg lbl lda ldb ldd lde ldf ldg ldl lea leb led lee lef leg lel lfa lfb lfd lfe lff lfg lfl lga lgb lgd lge lgf lgg lgl lla llb lld lle llf llg lll