bbbb bbfn bbin bibb bibi bibo biff bifi biin bimo bin- bini binn bino bio- bioi bion birb biri birn biro birr bmir bmmi bnib bnim bnin bnor bnrr bobb bobi bobo boff boi- boii boim boin bomb bomi boni bonn bono boob boof boom boon boor bor- borf bori borm born boro borr brfm brim brin brio brno brob brom bron broo bror brrm brrr fbom ffff ffii ffrr fiff fifi fifm fifo fiii fimo fimr fini finn fino fion fior firm firn fmno fmri fofo foin fomo fono foof foom foon for- forb fori form forn foro forr frib frim frin frio frmn frob from fron i-no ibbm ibfi ibim ibon ibri ibro ifbb ifim ifni ifno ifnr ifor ifrb ifrf ifri iiii iiio iinm iino iioi iioo imbi imfi imin imir immi immo imno imof imon imri imro imrr inbo infi info inni inno innr ino- inoi inon inor inri inro iobi ioii ioio iomo ioni ionn iono ioof iooi iooo iori irbm irfm iri- irin irio irmo irob iron irri mbim mbio mfbm mfor mfri miff mifi miii miin miio mim- mimi mimo mini minn mino mio- mion miri miro mirr mmff mmii mmmm mmor mmrf mnbb mnin mobb mobi mobo moff mofo moif moii moin moio moir momi momo mon- moni monn mono moob moon moor morb morf mori morn moro mrbb mrbm mron n-ii nbbo nfff nfib nfon nibi nibm nibo niff niir nimb nimi nimo nimr nini nino nion nioo niro nmff nmon nmri nnnn nobi nobm nobo nofi noib noif noin noio noir nom- nomi nomo non- noni nonn nono noo- noob noon nooo noor nor- norb norf nori norm norn noro norr nron obbo obin oboi obon obor obri obro off- offo offr ofno ofor oiii oimb oion ombo omim omin omio omn- omni omo- omoi omon omoo omor omri omro onir onni onno onon onor oobi ooff oooo orbb orbi orbo orff orfi ori- orif orin orio ormn ormo orni orno oro- orof orom oron oror orri orro rbbb rbbr rib- ribo riff riif riin rimi rimm rimo rinf rinn rino riom rion riri rmif rmon rnbr rnin rob- robb robi robo roff rofo roif roin roio roir romb romi romm romo roni rono roob roof rooi room roon roor rori roro rrif rrrr