-ol bbb bbd bbe bbl bbn bbo bdb bdd bde bdl bdo be- beb bed bee bel ben beo blb bld ble bll bln blo bnb bnd bne bnl bnn bno bob bod boe bol bon boo dbb dbd dbe dbl dbn dbo ddb ddd dde ddl ddn ddo de- deb ded dee del den deo dl- dlb dld dle dll dlo dnb dnd dne dnl dnn dno dob dod doe dol don doo ebb ebd ebe ebl ebn ebo ed- edb edd ede edl edn edo eeb eed eee eel een eeo elb eld ele ell eln elo en- enb end ene enl enn eno eo- eob eod eoe eol eon eoo lbb lbd lbe lbl lbo ldb ldd lde ldl ldn ldo leb led lee lel len leo llb lld lle lll lln llo lnb lnd lne lnl lnn lno lob lod loe lol lon loo nbb nbd nbe nbl nbn nbo ndb ndd nde ndl ndn ndo ne- neb ned nee nel nen neo nlb nld nle nll nln nlo nnb nne nnl nnn nno no- nob nod noe nol non noo ob- obb obd obe obl obn obo odb odd ode odl odn odo oeb oed oee oel oen oeo olb old ole oll oln olo on- onb ond one onl onn ono oo- oob ood ool oon ooo