b-u bbb bbd bbf bbo bbr bbu bdb bdd bdf bdo bdr bdu bfb bfd bff bfo bfr bfu bob bod bof boo bor bou brb brd brf bro brr bru bub bud buf buo bur buu dbb dbd dbf dbo dbr dbu ddb ddd ddf ddo ddr ddu dfb dfd dff dfo dfr dfu dob dod dof doo dor dou drb drd dro drr dru dub dud duf duo dur fbb fbd fbf fbo fbr fbu fdb fdd fdf fdo fdr fdu ffd fff ffo ffr ffu fob fof foo for fou frb frd frf fro frr fru fub fud fuf fuo fur fuu ob- obb obd obf obo obr obu odb odd odf odo odr odu of- ofb ofd off ofo ofr ofu oo- oob ood oof ooo oor or- orb ord orf oro orr oru ou- oud ouf ouo our rbb rbd rbf rbo rbr rbu rdb rdd rdf rdo rdr rdu rfb rfd rff rfo rfr rfu rob rod rof roo ror rou rrb rrd rrf rrr rru rub rud ruf ruo rur ruu ubb ubf ubo ubr ubu udb udd udf udo udr udu ufd uff ufo ufr ufu uob uod uoo uor ur- urb urd urf uro urr uru uur uuu

bbbb bbdd bbdo bd-r bduf bobb bobo bobu bodb bodo bodu bofd boff bofu boob bood boof boor bor- bord borf boro borr boru boud bouf bour brdo brfu brob brod broo bror brou brrr brud bubb bubo bubu budb budd budo budu buff bufo bufr bur- burb burd buro burr buru d-bo dbfo dddd ddub dfrf dobb dobu dod- dodd dodo doff doob dood doof door dord dorf doro dorr doru doub doud douf dour drob drod drof drou drub druu dub- dubb dubu dudd dudo dudu duff dufu duo- duro duru duur ffff ffrr fofo food foof for- forb ford foro forr foud four frob frou frub fubb fubu fudd fuff fufu fuor fur- furo furr obbo obor obro odbo oddd odoo odor odou odur ofdr off- offo offr offu ofor ooff oooo oord orbb orbo orbu ordo ordu orff orfu oro- orof oror orro orub ouff our- ouro ouu- rbbb rbbr rob- robb robo robu rodd rodo roff rofo roob rood roof roor roro roru roub roud rouf rrrr rubb rubu rudd rudo ruff rufo rurd ruro ruru ruud ubbo ubod ubud udoo uofo uor- urdu urff uro- uroo urur uuuu

bdoor bo-bo bobr bodd- bodor boffo boord booru borbo bordo boro- borod boroo borou borro boudu bourd brobo brodd brodo brood broud brrrr brud- bruff buddu budur buffo buord buroo burro burru burud d-rod ddddd do-do dobro dodoo dodro dofor doodo dorff dorud doufu douro drbob drobo droff drood droof dubbo duddo dudou dufur fodor foodb foord ford- fordo forro forud forur fourb fourd fouro frodo frood froud fu-fu fuddu furbo furo- furor furud fuudo o-r-b obodo oboro obudu oddur odour odudu oduro offof ofour ooooo ordro orfor orobo orodo oruro ouoro ro-ro robbo robo- robor robur rodbo rodor rofor roodu rorbu rubof rubor ruffo rufo- u-dub ubobo ufofu uforb uroob urour urubu uuuuu

bbbbbb booboo borbor bororo boubou boudou bourou brubru bububu buford burbur burdur dododo dorbod dorobo dorood dororo doudou dourou dubdub dufour foboff foofoo foofur forbod foufou fourof fourou frbroo furfur furour furrfu ofdoor offord oooooo oordoo ordoru orford orrour ruboff rubro- rudrur udburu ufford urdorf

bbbbbbb boo-boo bordour boudofo bourrou broudur bruford burdour dob-dob dobrodo dodford dododou doo-doo dourdou dubford foo-foo fou-fou furrour off-off oroboro robford rub-off rubbour rudford rufford ububboo

bbbbbbbb bo-bo-bo borborud broubrou buruburu fourbour fourdoor froufrou off-odor our-burd ubbubboo

bodffordd borborbor borobudur ddddddddd four-door four-four frou-frou rodofodor

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