bbbb bbdd bbdo bbin bd-r bdii bdin bibb bibi bibo bidi bido bidr biin bin- bind bini binn bino bio- bioi bion birb bird biri birn biro birr bivi bnib bnin bnor bnrr bobb bobi bobo bodb bodi bodo boi- boid boii boin bond boni bonn bono boob bood boon boor bor- bord bori born boro borr bovi bovo brdo brid brin brio brno brob brod bron broo bror brrr brvi d-bo dbrn dddd dibb dibo didi dido diii diiv din- dini dinn dino dion dior dird dirr divd divi divo dobb dobi dod- dodd dodi dodo doid doin dond doni donn dono donr doob dood doon door dord dori dorn doro dorr dovi drib drin drno drob drod dron drvn dvdr dvi- dvii dvin dvir dvno dvor i-no ibdo ibid ibon ibrd ibri ibro iddo idid idin idio idir idno idon idro idvd iiii iiio iino iioi iioo inbd inbo ind- indi indo inid inni inno innr ino- inoi inon inor inri inro iobi iod- iodd iodo ioii ioio ioni ionn iono iooi iooo iori irdo iri- irid irin irio irob irod iron irov irri ivbv ivdr ivin ivod ivon ivor n-ii nbbo nddb nddo ndor ndri nibi nibo nidd nidi nido niir nind nini nino nion nioo niro nirv nivo nivr nndb nnnn nobi nobo nodi nodo noib noid noin noio noir non- noni nonn nono noo- noob noon nooo noor noov nor- norb nord nori norn noro norr norv nov- novi novo nron nrrd nvir obbo obid obin oboi obon obor obri obro obvi odbo oddd oddi odin odio odir odnb odon odoo odor oido oiii oion ondi ondo onir onni onno onod onon onor oobi oodi ooid oooo oord orbb orbi orbo ordn ordo ori- orid orin orio orni orno oro- oron oror orri orro orvr ovi- ovid ovni ovo- ovod ovon ovoo rbbb rbbr rdio rib- ribo ridd ridi rido riin rind rinn rino rion riri rivo rnbr rnin rnod rob- robb robi robo rodd rodi rodo roid roin roio roir rond roni rono roob rood rooi roon roor rori roro rovi rovo rrrr vdio vidi vido viii vind vini vino vion virb viri viro virr vivi vivo vnir vodo void voin voio voir vond voni vonn voor vor- vord vori voro vrdi vrin vrio vrnn vron vvob vvvv