-al a-a a-b aaa aab aad aae aah aal ab- aba abb abd abe abh abl ad- ada adb add ade adh adl aea aeb aed aee aeh ael aha ahb ahd ahe ahh ahl al- ala alb ald ale alh all baa bab bad bae bah bal bba bbb bbd bbe bbh bbl bda bdb bdd bde bdh bdl be- bea beb bed bee beh bel bha bhb bhd bhe bhh bhl bla blb bld ble blh bll daa dab dad dae dah dal dba dbb dbd dbe dbh dbl dda ddb ddd dde ddh ddl de- dea deb ded dee deh del dh- dha dhb dhd dhe dhh dhl dl- dla dlb dld dle dlh dll eaa eab ead eae eah eal eba ebb ebd ebe ebh ebl ed- eda edb edd ede edh edl eea eeb eed eee eel eha ehb ehd ehe ehh ehl ela elb eld ele elh ell haa hab had hae hah hal hba hbb hbd hbe hbh hbl hda hdb hdd hde hdh hdl he- hea heb hed hee heh hel hha hhb hhd hhe hhh hhl hla hlb hld hle hlh hll la- laa lab lad lae lah lal lba lbb lbd lbe lbh lbl lda ldb ldd lde ldh ldl lea leb led lee leh lel lha lhb lhd lhh lla llb lld lle lll