-ol b-u bbb bbd bbe bbl bbo bbu bdb bdd bde bdl bdo bdu bdz be- beb bed bee bel beo beu bez blb bld ble bll blo blu blz bob bod boe bol boo bou boz bub bud bue bul buo buu buz bzd bze bzo bzu bzz dbb dbd dbe dbl dbo dbu dbz ddb ddd dde ddl ddo ddu ddz de- deb ded dee del deo deu dez dl- dlb dld dle dll dlo dlu dob dod doe dol doo dou doz dub dud due dul duo duz dzb dzd dze dzo dzu ebb ebd ebe ebl ebo ebu ed- edb edd ede edl edo edu eeb eed eee eel eeo elb eld ele ell elo elu elz eo- eob eod eoe eol eoo eou eu- eub eud eue eul eze ezo ezz lbb lbd lbe lbl lbo lbu ldb ldd lde ldl ldo ldu leb led lee lel leo leu lez llb lld lle lll llo llu llz lob lod loe lol loo lou loz lub lud lue lul luo luu luz lzo lzu ob- obb obd obe obl obo obu odb odd ode odl odo odu oeb oed oee oel oeo olb old ole oll olo olu oo- oob ood ool ooo ou- oud oue oul ouo oze ozo ozu ozz ubb ube ubl ubo ubu udb udd ude udl udo udu ueb ued uee uel ulb uld ule ull ulo ulu uob uod uoe uol uoo uue uuu uzb uzo uzu zbb zbl zeb zed zee zel zeo zez zo- zob zod zoe zol zoo zou zub zud zul zuz zzz