-al -ol a-a a-b aaa aab aad aag aal aao ab- aba abb abd abg abl abo ad- ada adb add adg adl ado ag- aga agb agd agg agl ago al- ala alb ald alg all alo aoa aob aod aog aol aoo baa bab bad bag bal bao bba bbb bbd bbg bbl bbo bda bdb bdd bdg bdl bdo bga bgb bgd bgg bgl bgo bla blb bld blg bll blo boa bob bod bog bol boo daa dab dad dag dal dao dba dbb dbd dbg dbl dbo dda ddb ddd ddg ddl ddo dga dgd dgg dgl dl- dla dlb dld dlg dll dlo doa dob dod dog dol doo g-d gaa gab gad gag gal gao gba gbd gbg gbl gbo gda gdb gdd gdl gdo gga ggb ggd ggg ggo gla glb gld glg gll glo goa gob god gog gol goo la- laa lab lad lag lal lao lba lbb lbd lbg lbl lbo lda ldb ldd ldg ldl ldo lga lgb lgd lgg lgl lgo lla llb lld llg lll llo loa lob lod log lol loo oaa oab oad oag oal oao ob- oba obb obd obg obl obo oda odb odd odg odl odo oga ogd ogg ogl ogo ola olb old olg oll olo oo- ooa oob ood oog ool ooo