bbbb bbch bbci bbdd bbdo bbrc bcbc bccc bcci bchd bcor bcvo bd-r bdbc bddc bddh bdii bhcc bhir bhoi bhor bibb bibi bibo bicc bich bici bico bidi bido bidr bihi bio- bioc bioi birb bird biri biro birr bivi bobb bobi bobo boch boco bodb bodh bodi bodo bohd boho bohr boi- boid boii boob booc bood booh boor bor- bord borh bori boro borr bovi bovo brcb brdo bric brid brih brio brob broc brod broh broo bror brrr brvi c-bo c-cd cbbc cbcc cbcr cbdb cbdc cbdi cbdo cbid cbir cbrd cbrh cbvb cbvr ccbc cccb cccc ccci cccv ccdc ccdh ccdi ccdr cchr ccic ccid ccii ccir cciv ccob ccoc ccod ccrc ccri ccvi ccvo cd-r cddb cddr cdic cdii cdio cdiv cdvd cdvi chch chci chdi chib chic chid chih chir chiv choc chod choh choi choo chor chov chrb chrc chrd chro chrr chvo cibc cibi cibo cicc cich cici cico cicr cidc cidi cidr cihr ciid ciii ciob cior cirb circ cirh ciri ciro cirr civc civh civo cobb cobh cobi cobo coch coco codd codi coho coir coob cood cooh cor- corb corc cord cori coro corr covo crbc crcc crcr crdc crib cric crob croc crod croh croo cror cvcc cvid cvii cvrd cvrr d-bo dbcc dcbc dccb dccc dcci dccv dcdb dcii dcio dciv dcvd dcvi dddd ddoc ddrc dhod dhor dibb dibo dich dici dico didi dido diii diiv dioc dior dird dirr divd divi divo dobb dobi doch doci doco dod- dodd dodi dodo dohc dohr doid doob dood door dorc dord dori doro dorr dovi drbc drib dric drih drob drod droh dvdr dvi- dvii dvir dvor h-ii hbcd hbic hbio hboc hcbc hccb hccc hcch hcdr hchi hcrd hdci hdiv hdoc hdod hdri hhhh hi-c hi-v hibi hicc hich hico hidi hihc hihi hiho hiob hioc hird hiri hiro hobo hoch hocr hodh hodi hodr hoho hoid hoir hood hoor horc hord hori horo horr hovi hrdc hrib hrid hrob hrod hrrc hvcc ibdo ibid ibrc ibrd ibri ibro icbc icbd iccb iccc icci icco iccr icdc icdd ichc ichd ichi icho ichr icoc icod icor icrc icrr idcr iddo idic idid idio idir idoc idrc idro idvd ihcc ihdr ihob ihrc ihrd ihvh iicd iiii iiio iioi iioo iirc iobi ioci iod- iodd iodo ioii ioio iooi iooo iori ircc ircd irdc irdo iri- iric irid irio irob iroc irod iroh irov irrc irri ivbv ivdr ivic ivod ivor obbo obid oboi obor obrh obri obro obvi ocbc occc occi ochi ocro ocrr odbo odci oddd oddi odic odio odir odoh odoo odor ohcc ohhi ohho ohid ohio ohob ohoh oici oido oiii oobi oocr oodi ooho ooid oooh oooo oord orbb orbi orbo orch orci orco ordo ori- oric orid orio oro- oror orri orro orvr ovhd ovi- ovid ovo- ovod ovoo rbbb rbbr rboh rcbc rcbo rccb rccc rcdc rchb rcic rcid rcrd rcvr rdio rdoc rhib rhio rhob rhoc rhod rhoh rib- ribo ricc rich rico ridc ridd ridi rido riho riri rivo rob- robb robi robo rocc roch roco rodd rodi rodo rohr roid roio roir roob rood rooi roor rorc rori roro rovi rovo rrrr rv-c rvvh vbcc vcbi vcci vdcc vdio vhhh vic- vich vici vico vidi vido vihi viii virb virc viri viro virr vivi vivo vodo voho voic void voio voir vooc voor vor- vord vori voro vrci vrdi vrio vroc vvob vvvv