-ic b-u bbb bbc bbd bbi bbo bbr bbu bcb bcc bcd bci bco bcr bcu bdb bdc bdd bdi bdo bdr bdu bi- bib bic bid bii bio bir biu bob boc bod boi boo bor bou brb brd bri bro brr bru bub buc bud bui buo bur buu c-- cbb cbc cbd cbi cbo cbr cbu ccb ccc ccd cci cco ccr ccu cdb cdc cdd cdi cdo cdr cdu ci- cib cic cid cii cio cir ciu co- cob coc cod coi coo cor cou crb crc crd cri cro crr cru cub cuc cud cui cuo cur cuu dbb dbc dbd dbi dbo dbr dbu dcb dcc dcd dci dco dcr dcu ddb ddc ddd ddi ddo ddr ddu di- dib dic did dii dio dir diu dob doc dod doi doo dor dou drb drc drd dri dro drr dru dub duc dud dui duo dur i-d ibb ibc ibd ibi ibo ibr ibu icb icc icd ici ico icr icu idb idc idd idi ido idr idu iib iic iid iii iio iir iiu io- iob ioc iod ioi ioo ior iou ir- irb irc ird iri iro irr iru iu- iub iuc iud iui iur o-i ob- obb obc obd obi obo obr obu oc- ocb occ ocd oci oco ocr ocu odb odc odd odi odo odr odu oib oic oid oii oio oir oiu oo- oob ooc ood ooi ooo oor or- orb orc ord ori oro orr oru ou- ouc oud oui ouo our rbb rbc rbd rbi rbo rbr rbu rcb rcc rcd rci rco rcr rcu rdb rdc rdd rdi rdo rdr rdu rib ric rid rii rio rir rob roc rod roi roo ror rou rrb rrc rrd rri rrr rru rub ruc rud rui ruo rur ruu ubb ubc ubi ubo ubr ubu ucb ucc ucd uci uco ucr ucu udb udc udd udi udo udr udu uib uic uid uii uio uir uiu uob uoc uod uoo uor ur- urb urc urd uri uro urr uru uuc uur uuu

bbbb bbci bbdd bbdo bbrc bcbc bccc bcci bcor bcru bcuc bd-r bdbc bddc bdii bibb bibi bibo bicc bici bico bidi bido bidr bidu bio- bioc bioi biou birb bird biri biro birr biru bobb bobi bobo bobu boco bocu bodb bodi bodo bodu boi- boid boii boiu boob booc bood boor bor- bord bori boro borr boru boud bour brcb brdo bric brid brio brob broc brod broo bror brou brrr bruc brud bubb bubi bubo bubu bucc buci buco bucu budb budd budi budo budu buic buid buir buiu bur- burb burd buri buro burr buru c-bo c-cd cbbc cbcc cbcr cbcu cbdb cbdc cbdi cbdo cbid cbir cbrd ccbc cccb cccc ccci cccu ccdc ccdi ccdr ccic ccid ccii ccir ccob ccoc ccod ccrc ccri ccuc cd-r cddb cddr cdic cdii cdio cibc cibi cibo cicc cici cico cicr cicu cidc cidi cidr ciid ciii ciob cior cirb circ ciri ciro cirr ciuc cobb cobi cobo cobu coco cocu codd codi coir coob cood cor- corb corc cord cori coro corr coub coud cour crbc crbu crcc crcr crdc crib cric criu crob croc crod croo cror crub crud cub- cubb cubi cucc cuci cudi cui- cuir curb curd curi curo curr d-bo dbcc dcbc dccb dccc dcci dccu dcdb dcii dcio dddd ddoc ddrc ddub dibb dibo dici dico didi dido didu diii dioc dior diou dird dirr dobb dobi dobu doci doco docu dod- dodd dodi dodo doid doob dood door dorc dord dori doro dorr doru doub douc doud dour drbc drib dric drob drod drou drub drui druu dub- dubb dubc dubu duco dudd dudo dudu duid duir duo- duri duro duru duur ibdo ibid ibrc ibrd ibri ibro icbc icbd iccb iccc icci icco iccr iccu icdc icdd icoc icod icor icrc icrr icru icub idcr iddo idic idid idio idir idoc idrc idro idub iduo iicd iiii iiio iioi iioo iirc iiuc iobi ioci iod- iodd iodo ioii ioio iooi iooo iori ircc ircd ircu irdc irdo iri- iric irid irio irob iroc irod irrc irri iucc iuiu obbo obid oboi obor obri obro ocbc occc occi ocro ocrr ocur odbo odci oddd oddi odic odio odir odiu odoo odor odou odur oici oido oiii oobi oocr oodi ooid oooo oord orbb orbi orbo orbu orci orco ordo ordu ori- oric orid orio oro- oror orri orro orub oucc oudc ouii ouir our- ouro ouu- rbbb rbbr rcbc rcbo rccb rccc rcdc rcic rcid rcrd rdio rdoc rib- ribo ribu ricc rico ridc ridd ridi rido riou riri rob- robb robi robo robu rocc roco rodd rodi rodo roid roio roir roiu roob rood rooi roor rorc rori roro roru roub roud rrrr rubb rubi rubu ruci rudd rudi rudo ruid rurc rurd ruri ruro ruru ruud ubbi ubbo ubic ubid ubii ubir uboc ubod ubud ucbc ucci ucdc ucdd ucio ucrc udbc uddi udic udid udir udoo uirr uocc uor- urbi urci urdu urib uric uriu uro- uroo urri urur uuoc uuri uuuu

bdoor bibbo bibic bibio bibod bibri biddu bidor bidri bidur bioci bioco birdo birdu biroc birou birur bo-bo bobbi boboc bobr bobri bocci bocor bodd- bodio bodir bodiu bodoc bodor bodri boiro booco boord booru borbo borci bordi bordo boric borid borio boro- borod boroo borou borro boudu bourd bouri brico bridi briod briou brobo brodd brodo broid brood broud brrrr brud- bruiu bruri bucci bucco bucic bucur buddu budoc budur buici buird buord burcu burdi buric burio buroo burri burro burru buruc burud c-cor ccccc cccii cciii cdiii cibir cidob cioid circo ciric cirio cirr- cirri cirro co-bo co-co cocc- cocci cocco cocio cocir cociu cocur codco codo codoi codri codru coiid coiro coord corbi corbo corbu corio coro- corod coroi corri couco courb courd couri couru cribb cribo crio- croci croco crodo crood croud crudo cruor cubi- cubic cubo- cubub cucui cuoco curbi curdi curic curio curri curro d-cru