-ol bbb bbd bbe bbl bbo bdb bdd bde bdl bdo bdz be- beb bed bee bel beo bez blb bld ble bll blo blz bob bod boe bol boo boz bzd bze bzo bzz dbb dbd dbe dbl dbo dbz ddb ddd dde ddl ddo ddz de- deb ded dee del deo dez dl- dlb dld dle dll dlo dob dod doe dol doo doz dzb dzd dze dzo ebb ebd ebe ebl ebo ed- edb edd ede edl edo eeb eed eee eel eeo elb eld ele ell elo elz eo- eob eod eoe eol eoo eze ezo ezz lbb lbd lbe lbl lbo ldb ldd lde ldl ldo leb led lee lel leo lez llb lld lle lll llo llz lob lod loe lol loo loz lzo ob- obb obd obe obl obo odb odd ode odl odo oeb oed oee oel oeo olb old ole oll olo oo- oob ood ool ooo oze ozo ozz zbb zbl zeb zed zee zel zeo zez zo- zob zod zoe zol zoo zzz