-al -ol a-a a-b a-i aaa aab aad aai aal aao ab- aba abb abd abi abl abo ad- ada adb add adi adl ado ai- aia aib aid aii ail aio al- ala alb ald ali all alo aoa aob aod aoi aol aoo baa bab bad bai bal bao bba bbb bbd bbi bbl bbo bda bdb bdd bdi bdl bdo bi- bia bib bid bii bil bio bla blb bld bli bll blo boa bob bod boi bol boo daa dab dad dai dal dao dba dbb dbd dbi dbl dbo dda ddb ddd ddi ddl ddo di- dia dib did dii dil dio dl- dla dlb dld dli dll dlo doa dob dod doi dol doo i-d ia- iaa iab iad iai ial iao iba ibb ibd ibi ibl ibo ida idb idd idi idl ido iia iib iid iii iil iio il- ila ilb ild ili ill ilo io- ioa iob iod ioi iol ioo la- laa lab lad lai lal lao lba lbb lbd lbi lbl lbo lda ldb ldd ldi ldl ldo lia lib lid lii lil lio lla llb lld lli lll llo loa lob lod loi lol loo o-i oaa oab oad oai oal oao ob- oba obb obd obi obl obo oda odb odd odi odl odo oia oib oid oii oil oio ola olb old oli oll olo oo- ooa oob ood ooi ool ooo