b-u bbb bbf bbg bbi bbo bbr bbu bfb bff bfg bfi bfo bfr bfu bgb bgf bgg bgi bgo bgr bgu bi- bib bif big bii bio bir biu bob bof bog boi boo bor bou brb brf brg bri bro brr bru bub buf bug bui buo bur buu fbb fbf fbg fbi fbo fbr fbu fff ffg ffi ffo ffr ffu fgb fgf fgg fgi fgr fib fif fig fii fir fiu fob fof fog foi foo for fou frb frf frg fri fro frr fru fub fuf fug fui fuo fur fuu gbf gbg gbi gbo gbr gbu gfb gff gfi gfo gfr ggb ggg ggi ggo ggr ggu gib gif gig gii gio gir giu gob gof gog goi goo gor gou grb grf grg gri gro grr gru gu- gub guf gug gui guo gur guu i-f ibb ibf ibg ibi ibo ibr ibu ifb iff ifg ifi ifo ifr ifu igb igf igg igi igo igr igu iib iif iii iio iir iiu io- iob iof iog ioi ioo ior iou ir- irb irf irg iri iro irr iru iu- iub iug iui iur o-i ob- obb obf obg obi obo obr obu of- ofb off ofg ofi ofo ofr ofu ogf ogg ogi ogo oib oif oii oio oir oiu oo- oob oof oog ooi ooo oor or- orb orf org ori oro orr oru ou- ouf oui ouo our rbb rbf rbg rbi rbo rbr rbu rfb rff rfg rfi rfo rfr rfu rgb rgf rgg rgi rgo rgr rib rif rig rii rio rir rob rof rog roi roo ror rou rrb rrf rrg rri rrr rru rub ruf rug rui ruo rur ruu ubb ubf ubg ubi ubo ubr ubu uff ufg ufi ufo ufr ufu ugb ugf ugg ugi ugo ugr ugu uib uif uig uii uio uir uiu uob uog uoo uor ur- urb urf urg uri uro urr uru uug uur uuu

bbbb bbrg bfgf bibb bibi bibo biff bifi bigb bigg bigo bigu bio- biog bioi biou birb birg biri biro birr biru bobb bobi bobo bobu boff bofu bogg bogi bogo boi- boii boiu boob boof boog boor bor- borf borg bori boro borr boru bouf bour brfu brig brio brob brog broo bror brou brrr brug bubb bubi bubo bubu buff bufo bufr bugg bugi bugo buif buir buiu bur- burb burg buri buro burr buru ffff ffii ffrr fiff fifi fifo figg figo fiii fior fofo fogg fogi fogo foof for- forb forg fori foro forr foug four frib frig frio frob frog frou frub frug fubb fubu fuff fufu fugi fugo fugu fuig fuir fuor fur- furg furi furo furr gbbo gfor ggfg gggg gibb giff gifu gigg gigi gigo giog gioi girg giri giro girr giru giur gobi gobo goff gofr gofu gogi gogo goif goof goog gooi goor gorb gorf gorg gori goro gorr gou- gouf goug gour grbr grib grif grig grob grof grog groi groo gror grou grrr grub gruf grug grui grur gubb gubi gubu guff gugb gugg gugi gugu guib gurb gurg guri guro gurr guru i-go ibfi ibri ibro ifbb ifor ifrb ifrf ifri igbo igoo igor igri iiii iiio iioi iioo iobi ioii ioio ioof iooi iooo iorg iori ioug irfu iri- irig irio irob irri iuiu obbo oboi obor obri obro off- offo offr offu ofgo ofor ogb ogfr oggi ogog ogoi ogou ogri ogro ogui oigo oiii oobi ooff oooo orbb orbi orbo orbu orff orfi orfu orgo ori- orif orig orio oro- orof oror orri orro orub ouff ouii ouir our- ouro ouu- rbbb rbbr rgbi rib- ribo ribu riff rifu rigg rigi rigo rigu riif riou riri rob- robb robi robo robu roff rofo rogg rogi rogo roif roig roio roir roiu roob roof roog rooi roor rori roro roru roub rouf rrif rrrr rubb rubi rubu ruff rufo rugg rugi ruif ruri ruro ruru ubbi ubbo ubii ubir uggo ugri ugro ugur uguu uirr uofg uofo uor- urbi urff urfi urgi urgu urib urif uriu uro- uroo urri urur uuri uuuu

bfrog bibbo bibio bibri biffi biffo bifor big-i bigif bigig bigoo birgi birgu birou birur bo-bo bobbi bobr bobri boffi boffo bogof bogor bogu bogur boiro booru borbo borgo borgu borio boro- boroo borou borro bourg bouri brifu brigg brigi briou brobo brrrr bruff brugg bruiu bruri buffi buffo bugoo burfi burgi burgo burgu burio buroo burri burro burru fibr- fibro fiori firgo firou fogbo foggo fogou foir- forgo forio forro forur fougo fourb fourg fouro frigg frigo friog frugo fu-fu fugro fugug furbo furio furir furo- furor ggobi gi-fi gibbi gibi- giour girru giubo go-go go-oo gobbi gobbo gobig gobio gobir goffi gofio gofor gogoi gogro gogui goibo goobi goobo gooff gorgo gorir grgur griff grifo grigg groff grogg groof grouf grrrr grubb gruff gruiu gubbi gubbo gubio gubru guggi gugir guiri guiro gurgi guroo gurro gurur ibbur ibibo ibogo if-- iffou iggri igigi iiiii ioooi ioooo iorio irobo irori irour o-r-b oboro offir offof ofori ofour oggif ogiri ogogo ogugu oguri ooioo ooooo orfor oribi origi origo orobo orrgo oruro ouigo ouir- ouoro ri-fi ribbi ribo- rig-i rigio rigor ro-ro robbi robbo robo- robor robur rofor rogoi rorbu rubbi rubio rubof rubor ruffo rufi- rufio rufo- rugii rugir ruiru ubirr ubobo ufofu uforb ugoff ugro- ugrug uigur uiro uroob urour urubu ururi uuuuu

bbbbbb bibiri bibiru biburg bigboi biggio bigrig biobor biribi birog birori bobbio bobiri bogoff bogoro booboo borbor borgir borogo bororo boubou bougou bourou bribir bribri broggi brubru bubbio bububu bufori bugbug bugiri bugoff buguri burbur burgio burgoo burgor burgui burior buriro burrio bururi fibro- figuig fiuggi fobiri foboff foofoo foofur foufou fougou fourbi fourgo fourof fourou frbroo frigo- frigor froggo furfur furour furrfu gigiri gigour giorgi go-off gobbur gogoro googoo gooroo gorbio gorgio gorgor gourbi gourou gourri griffo grigio grigor grigri grofri groiff grouff grugru gubbio gubgub guigou guirgo gurbir gurbru gurobi gurugu ibibio igf-ii igougo iiooio irrour irugur obourg off-go offrir