-al -ol a-a a-b a-z aaa aab aad aal aao aar aaz ab- aba abb abd abl abo abr abz ad- ada adb add adl ado adr adz al- ala alb ald all alo alr alz aoa aob aod aol aoo aor ar- ara arb ard arl aro arr arz az- aza azb azd azo azz baa bab bad bal bao bar baz bba bbb bbd bbl bbo bbr bda bdb bdd bdl bdo bdr bdz bla blb bld bll blo blr blz boa bob bod bol boo bor boz bra brb brd brl bro brr brz bza bzd bzo bzr bzz daa dab dad dal dao dar daz dba dbb dbd dbl dbo dbr dbz dda ddb ddd ddl ddo ddr ddz dl- dla dlb dld dll dlo dlr doa dob dod dol doo dor doz dra drb drd drl dro drr drz dza dzb dzd dzo dzr la- laa lab lad lal lao lar laz lba lbb lbd lbl lbo lbr lda ldb ldd ldl ldo ldr lla llb lld lll llo llr llz loa lob lod lol loo lor loz lra lrb lrd lro lrr lrz lzo lzr oaa oab oad oal oao oar ob- oba obb obd obl obo obr oda odb odd odl odo odr ola olb old oll olo oo- ooa oob ood ool ooo oor or- ora orb ord orl oro orr orz oza ozo ozz ra- raa rab rad ral rao rar raz rba rbb rbd rbl rbo rbr rda rdb rdd rdl rdo rdr rla rld rll rlo rlr roa rob rod rol roo ror roz rra rrb rrd rrl rrr rza rzb rzo zaa zab zad zao zar zaz zbb zbl zbr zla zlr zo- zoa zob zod zol zoo zor zrl zro zzr zzz