-ol bbb bbd bbe bbi bbl bbo bbx bdb bdd bde bdi bdl bdo bdx be- beb bed bee bei bel beo bex bi- bib bid bie bii bil bio bix blb bld ble bli bll blo blx bob bod boe boi bol boo box bxb bxd bxi bxl bxo bxx dbb dbd dbe dbi dbl dbo dbx ddb ddd dde ddi ddl ddo ddx de- deb ded dee dei del deo dex di- dib did die dii dil dio dix dl- dlb dld dle dli dll dlo dlx dob dod doe doi dol doo dox dxd dxi dxl dxo dxx ebb ebd ebe ebi ebl ebo ebx ed- edb edd ede edi edl edo edx eeb eed eee eel eeo eex eib eid eie eii eil eio eix elb eld ele eli ell elo elx eo- eob eod eoe eoi eol eoo ex- exd exe exi exl exo exx i-d ibb ibd ibe ibi ibl ibo ibx idb idd ide idi idl ido idx ie- ied iee iei iel iex iib iid iie iii iil iio iix il- ilb ild ile ili ill ilo ilx io- iob iod ioe ioi iol ioo ixe ixi ixl lbb lbd lbe lbi lbl lbo lbx ldb ldd lde ldi ldl ldo leb led lee lei lel leo lex lib lid lie lii lil lio lix llb lld lle lli lll llo lob lod loe loi lol loo lox lxd lxi lxo lxx o-i ob- obb obd obe obi obl obo obx odb odd ode odi odl odo oeb oed oee oei oel oeo oex oib oid oie oii oil oio olb old ole oli oll olo oo- oob ood ooi ool ooo oox ox- oxb oxi oxo oxx xbe xbl xbx xdb xde xdi xed xee xel xex xie xii xio xix xlb xld xli xod xoi xoo xox xxi xxl xxo xxx