-al -ol a-a a-b a-i aaa aab aad aai aal aao aas ab- aba abb abd abi abl abo abs ad- ada adb add adi adl ado ads ai- aia aib aid aii ail aio ais al- ala alb ald ali all alo als aoa aob aod aoi aol aoo aos as- asa asb asd asi asl aso ass baa bab bad bai bal bao bas bba bbb bbd bbi bbl bbo bbs bda bdb bdd bdi bdl bdo bds bi- bia bib bid bii bil bio bis bla blb bld bli bll blo bls boa bob bod boi bol boo bos bsa bsb bsd bsi bsl bso bss daa dab dad dai dal dao das dba dbb dbd dbi dbl dbo dbs dda ddb ddd ddi ddl ddo dds di- dia dib did dii dil dio dis dl- dla dlb dld dli dll dlo dls doa dob dod doi dol doo dos dsa dsb dsd dsi dsl dso dss i-d ia- iaa iab iad iai ial iao ias iba ibb ibd ibi ibl ibo ibs ida idb idd idi idl ido ids iia iib iid iii iil iio iis il- ila ilb ild ili ill ilo ils io- ioa iob iod ioi iol ioo ios is- isa isb isd isi isl iso iss la- laa lab lad lai lal lao las lba lbb lbd lbi lbl lbo lbs lda ldb ldd ldi ldl ldo lds lia lib lid lii lil lio lis lla llb lld lli lll llo lls loa lob lod loi lol loo los lsa lsb lsd lsi lsl lso lss o-i oaa oab oad oai oal oao oas ob- oba obb obd obi obl obo obs oda odb odd odi odl odo ods oia oib oid oii oil oio ois ola olb old oli oll olo ols oo- ooa oob ood ooi ool ooo oos os- osa osb osd osi osl oso oss saa sab sad sai sal sao sas sba sbb sbd sbi sbl sbo sbs sda sdb sdd sdi sdl sdo sds sia sib sid sii sil sio sis sla slb sld sli sll slo sls soa sob sod soi sol soo sos ss- ssa ssb ssd ssi ssl sso sss