bbb bbd bbi bbk bbn bbo bbr bdb bdd bdi bdk bdo bdr bdv bi- bib bid bii bik bin bio bir biv bkb bkk bkn bko bkr bkv bnb bnd bni bnk bnn bno bnr bnv bob bod boi bok bon boo bor bov brb brd bri brk brn bro brr brv bvb bvd bvi bvk bvn bvo bvr bvv dbb dbd dbi dbk dbn dbo dbr dbv ddb ddd ddi ddk ddn ddo ddr di- dib did dii dik din dio dir div dkb dki dkk dko dkr dnb dnd dni dnk dnn dno dnr dob dod doi dok don doo dor dov drb drd dri drk drn dro drr drv dvb dvd dvi dvk dvn dvr i-d i-v ibb ibd ibi ibk ibn ibo ibr ibv idb idd idi idk idn ido idr idv iib iid iii iin iio iir ikb iki ikk iko ikr ikv in- inb ind ini ink inn ino inr inv io- iob iod ioi ion ioo ior iov ir- irb ird iri irk irn iro irr irv ivb ivd ivi ivo ivr ivv kbb kbd kbi kbk kbn kbo kbr kdb kdk kdo kdr kib kid kii kik kin kio kir kiv kkb kki kkk kkn kkr kkv kn- knd kni knk knn kno knr kob kod koi kok kon koo kor krd kri krk krn kro krr krv kvb kvi kvk kvn kvo kvr kvv n-i nbb nbd nbi nbk nbn nbo nbr nbv ndb ndd ndi ndk ndn ndo ndr ndv nib nid nii nik nin nio nir niv nki nkk nkn nko nkr nnb nni nnk nnn nno nnv no- nob nod noi nok non noo nor nov nrb nrd nri nrk nrn nro nrr nrv nvb nvd nvi nvk nvn nvv o-i ob- obb obd obi obk obn obo obr obv odb odd odi odn odo odr odv oib oid oii oik oin oio oir oiv okb okd oki okk oko okr on- onb ond oni onk onn ono onr oo- oob ood ooi ook oon ooo oor oov or- orb ord ori ork orn oro orr orv ov- ovb ovd ovi ovo ovv rbb rbd rbi rbk rbn rbo rbr rdb rdd rdi rdn rdo rdr rdv rib rid rii rik rin rio rir riv rkb rkk rko rkv rnb rnd rni rnn rno rnr rnv rob rod roi rok ron roo ror rov rrb rrd rri rrk rrn rrr rvb rvd rvi rvn rvo rvr rvv vbd vbi vbk vbo vbr vbv vdb vdd vdi vdk vdo vdr vdv vi- vib vid vii vik vin vio vir viv vkb vn- vnd vni vno vnr vnv vob vod voi vok von voo vor vov vrb vrd vri vrk vrn vrr vvb vvi vvo vvr vvv