-al -ol a-a a-b aaa aab aad aae aal aao aau ab- aba abb abd abe abl abo abu ad- ada adb add ade adl ado adu aea aeb aed aee ael aeo aeu al- ala alb ald ale all alo alu aoa aob aod aoe aol aoo aou au- aua aub aud aue aul auo b-u baa bab bad bae bal bao bau bba bbb bbd bbe bbl bbo bbu bda bdb bdd bde bdl bdo bdu be- bea beb bed bee bel beo beu bla blb bld ble bll blo blu boa bob bod boe bol boo bou bua bub bud bue bul buo buu daa dab dad dae dal dao dau dba dbb dbd dbe dbl dbo dbu dda ddb ddd dde ddl ddo ddu de- dea deb ded dee del deo deu dl- dla dlb dld dle dll dlo dlu doa dob dod doe dol doo dou dua dub dud due dul duo eaa eab ead eae eal eao eau eba ebb ebd ebe ebl ebo ebu ed- eda edb edd ede edl edo edu eea eeb eed eee eel eeo ela elb eld ele ell elo elu eo- eoa eob eod eoe eol eoo eou eu- eua eub eud eue eul la- laa lab lad lae lal lao lau lba lbb lbd lbe lbl lbo lbu lda ldb ldd lde ldl ldo ldu lea leb led lee lel leo leu lla llb lld lle lll llo llu loa lob lod loe lol loo lou lua lub lud lue lul luo luu oaa oab oad oae oal oao oau ob- oba obb obd obe obl obo obu oda odb odd ode odl odo odu oea oeb oed oee oel oeo ola olb old ole oll olo olu oo- ooa oob ood ool ooo ou- oua oud oue oul ouo ua- uaa uab uad uae ual uao uau uba ubb ube ubl ubo ubu uda udb udd ude udl udo udu uea ueb ued uee uel ula ulb uld ule ull ulo ulu uoa uob uod uoe uol uoo uua uue uuu