bbb bbd bbi bbk bbn bbo bbr bdb bdd bdi bdk bdo bdr bi- bib bid bii bik bin bio bir bkb bkk bkn bko bkr bnb bnd bni bnk bnn bno bnr bob bod boi bok bon boo bor brb brd bri brk brn bro brr dbb dbd dbi dbk dbn dbo dbr ddb ddd ddi ddk ddn ddo ddr di- dib did dii dik din dio dir dkb dki dkk dko dkr dnb dnd dni dnk dnn dno dnr dob dod doi dok don doo dor drb drd dri drk drn dro drr i-d ibb ibd ibi ibk ibn ibo ibr idb idd idi idk idn ido idr iib iid iii iin iio iir ikb iki ikk iko ikr in- inb ind ini ink inn ino inr io- iob iod ioi ion ioo ior ir- irb ird iri irk irn iro irr kbb kbd kbi kbk kbn kbo kbr kdb kdk kdo kdr kib kid kii kik kin kio kir kkb kki kkk kkn kkr kn- knd kni knk knn kno knr kob kod koi kok kon koo kor krd kri krk krn kro krr n-i nbb nbd nbi nbk nbn nbo nbr ndb ndd ndi ndk ndn ndo ndr nib nid nii nik nin nio nir nki nkk nkn nko nkr nnb nni nnk nnn nno no- nob nod noi nok non noo nor nrb nrd nri nrk nrn nro nrr o-i ob- obb obd obi obk obn obo obr odb odd odi odn odo odr oib oid oii oik oin oio oir okb okd oki okk oko okr on- onb ond oni onk onn ono onr oo- oob ood ooi ook oon ooo oor or- orb ord ori ork orn oro orr rbb rbd rbi rbk rbn rbo rbr rdb rdd rdi rdn rdo rdr rib rid rii rik rin rio rir rkb rkk rko rnb rnd rni rnn rno rnr rob rod roi rok ron roo ror rrb rrd rri rrk rrn rrr