bbbb bbfn bbin bibb bibi bibo biff bifi biin bimo bin- bini binn bino binu bio- bioi bion biou birb biri birn biro birr biru bmir bmmi bnib bnim bnin bnor bnrr bobb bobi bobo bobu boff bofu boi- boii boim boin boiu bomb bomi bomu boni bonn bono bonu boob boof boom boon boor bor- borf bori borm born boro borr boru bouf boum boun bour brfm brfu brim brin brio brno brob brom bron broo bror brou brrm brrr brum brun bubb bubi bubo bubu buff bufo bufr buif buin buir buiu bum- bumb bumf bunb buni bunn buno bunu buon bur- burb buri burm burn buro burr buru fbom ffff ffii ffrr ffun fiff fifi fifm fifo fiii fimo fimr fini finn fino fion fior firm firn fmno fmri fnuf fofo foin fomo fono foof foom foon for- forb fori form forn foro forr foun four frib frim frin frio frmn frob from fron frou frub frum frun fubb fubu fuff fufu fuir fumi fumo funf fuor fur- furi furm furn furo furr i-no ibbm ibfi ibim ibon ibri ibro ifbb ifim ifni ifno ifnr ifor ifrb ifrf ifri iiii iiio iinm iino iioi iioo iium imbi imfi imin imir immi immo imno imof imon imou imri imro imrr imun inbo infi info inni inno innr innu ino- inoi inon inor inou inri inro inui inun iobi ioii ioio iomo ioni ionn iono ioof iooi iooo iori ioun irbm irfm irfu iri- irin irio irmo irob iron irri irun iuiu iuno mbim mbio mbou mfbm mfor mfou mfri miff mifi miii miin miio mim- mimi mimo mini minn mino minu mio- mion miri miro mirr miru miui mmff mmii mmmm mmor mmrf mmun mnbb mnin mobb mobi mobo moff mofo mofu moif moii moin moio moir momi momo momu mon- moni monn mono monu moob moon moor morb morf mori morn moro moru mouf moun mour mrbb mrbm mron mubi mubo muff mufi mufu muin muir mumm mumo mumu muni munn muno munu muon muri murn muro murr muru n-ii nbbo nbuf nfff nfib nfon nibi nibm nibo niff niir niiu nimb nimi nimo nimr nimu nini nino nion nioo niou niro niru niur nmff nmon nmri nnnn nobi nobm nobo nobu nofi noib noif noin noio noir nom- nomi nomo nomu non- noni nonn nono nonu noo- noob noon nooo noor nor- norb norf nori norm norn noro norr noun nour nron nubi nuff nuim nuin numb numi numm numu nunn nuno nuon nuri nurn nurr nuru obbo obin oboi obon obor obri obro off- offo offr offu ofno ofor oiii oimb oion oium ombo ombu omim omin omio omn- omni omo- omoi omon omoo omor omri omro omuo onir onni onno onon onor onur oobi ooff oooo orbb orbi orbo orbu orff orfi orfu ori- orif orin orio ormn ormo orni orno oro- orof orom oron oror orri orro orub orum ouff ouii ouin ouir oumi oun- our- ourn ouro ouu- rbbb rbbr rib- ribo ribu riff rifu riif riin rimi rimm rimo rimu rinf rinn rino riom rion riou riri rmif rmon rnbr rnin rob- robb robi robo robu roff rofo roif roin roio roir roiu romb romi romm romo roni rono roob roof rooi room roon roor rori roro roru roub rouf roum roun rrif rrrr rrum rrun rubb rubi rubu ruff rufo ruif ruin rumb rumi rumm rumo runf runi runn runo ruri ruro ruru ruun ubbi ubbo ubii ubir ubon uirr umb- umbi umbo umff ummo umno umor umri uni- unif unii unin unio unir unmr unni unno unon unrf unro unum uofm uofo uomo uor- urbi urff urfi urib urif urim urin uriu urmi urni uro- urom uroo urri urum urun urur uuni uuno uuri uuuu