bbb bbd bbi bbn bbo bbx bdb bdd bdi bdo bdx bi- bib bid bii bin bio bix bnb bnd bni bnn bno bnx bob bod boi bon boo box bxb bxd bxi bxn bxo bxx dbb dbd dbi dbn dbo dbx ddb ddd ddi ddn ddo ddx di- dib did dii din dio dix dnb dnd dni dnn dno dob dod doi don doo dox dxd dxi dxn dxo dxx i-d ibb ibd ibi ibn ibo ibx idb idd idi idn ido idx iib iid iii iin iio iix in- inb ind ini inn ino inx io- iob iod ioi ion ioo ixi ixn n-i nbb nbd nbi nbn nbo nbx ndb ndd ndi ndn ndo nib nid nii nin nio nix nnb nni nnn nno no- nob nod noi non noo nox nxd o-i ob- obb obd obi obn obo obx odb odd odi odn odo oib oid oii oin oio on- onb ond oni onn ono onx oo- oob ood ooi oon ooo oox ox- oxb oxi oxn oxo oxx xbx xdb xdi xii xin xio xix xno xod xoi xon xoo xox xxi xxo xxx