bbb bbd bbi bbn bbo bbr bdb bdd bdi bdo bdr bdv bi- bib bid bii bin bio bir biv bnb bnd bni bnn bno bnr bnv bob bod boi bon boo bor bov brb brd bri brn bro brr brv bvb bvd bvi bvn bvo bvr bvv dbb dbd dbi dbn dbo dbr dbv ddb ddd ddi ddn ddo ddr di- dib did dii din dio dir div dnb dnd dni dnn dno dnr dob dod doi don doo dor dov drb drd dri drn dro drr drv dvb dvd dvi dvn dvr i-d i-v ibb ibd ibi ibn ibo ibr ibv idb idd idi idn ido idr idv iib iid iii iin iio iir in- inb ind ini inn ino inr inv io- iob iod ioi ion ioo ior iov ir- irb ird iri irn iro irr irv ivb ivd ivi ivo ivr ivv n-i nbb nbd nbi nbn nbo nbr nbv ndb ndd ndi ndn ndo ndr ndv nib nid nii nin nio nir niv nnb nni nnn nno nnv no- nob nod noi non noo nor nov nrb nrd nri nrn nro nrr nrv nvb nvd nvi nvn nvv o-i ob- obb obd obi obn obo obr obv odb odd odi odn odo odr odv oib oid oii oin oio oir oiv on- onb ond oni onn ono onr oo- oob ood ooi oon ooo oor oov or- orb ord ori orn oro orr orv ov- ovb ovd ovi ovo ovv rbb rbd rbi rbn rbo rbr rdb rdd rdi rdn rdo rdr rdv rib rid rii rin rio rir riv rnb rnd rni rnn rno rnr rnv rob rod roi ron roo ror rov rrb rrd rri rrn rrr rvb rvd rvi rvn rvo rvr rvv vbd vbi vbo vbr vbv vdb vdd vdi vdo vdr vdv vi- vib vid vii vin vio vir viv vn- vnd vni vno vnr vnv vob vod voi von voo vor vov vrb vrd vri vrn vrr vvb vvi vvo vvr vvv