bbbb bbci bbdd bbdo bbin bcbc bccc bcci bdbc bddc bdii bdin bibb bibi bibo bicc bici bico bidi bido biin bin- binc bind bini binn bino bio- bioc bioi bion bnib bnin bnoc bobb bobi bobo boco bodb bodi bodo boi- boid boii boin bonc bond boni bonn bono boob booc bood boon c-bo c-cd cbbc cbcc cbcn cbdb cbdc cbdi cbdn cbdo cbid cbnd ccbc ccbn cccb cccc ccci ccdc ccdi ccdn ccic ccid ccii ccnb ccnc ccni ccob ccoc ccod cddb cdic cdii cdio cdnb cdnc cdon cibc cibi cibo cicc cici cico cidc cidi ciid ciii cin- cinc cind cini cino ciob cion cnbc cnci cnco cndd cnib cnic cnid cobb cobi cobo coco codd codi coin con- conc cond coni conn cono coob cood coon d-bo dbcc dcbc dccb dccc dcci dcdb dcii dcio dcon dddd ddoc dibb dibo dici dico didi dido diii din- dinc dini dinn dino dioc dion dnic dnoc dobb dobi doci doco dod- dodd dodi dodo doid doin donc dond doni donn dono doob dood doon i-no ibdo ibid ibon icbc icbd iccb iccc icci iccn icco icdc icdd icnb icnc icoc icod icon iddo idic idid idin idio idno idoc idon iicd iiii iiio iino iioi iioo inbd inbo incb incd inci inco ind- indc indi indo inid inni inno ino- inoi inon iobi ioci iod- iodd iodo ioii ioio ioni ionn iono iooi iooo n-ii nbbc nbbo nbcc nbci nbco nbic ncbc ncbi nccc ncci nccn ncdc ncdn ncid ncnc ncnd ncoc ndcc nddb nddo ndic ndoc nibi nibo nicc nicd nici nico nidd nidi nido nind nini nino nion nioo nndb nnnn nobc nobi nobo noci noco nodi nodo noib noid noin noio non- noni nonn nono noo- noob noon nooo obbo obid obin oboi obon ocbc occc occi occn ocin ocon odbo odci oddd oddi odic odin odio odnb odon odoo oici oido oiii oion onc- oncd onco ondi ondo onic onni onno onod onon oobi oodi ooid oooo