b-u bbb bbf bbi bbm bbo bbr bbt bbu bfb bff bfi bfm bfo bfr bft bfu bi- bib bif bii bim bio bir bit biu bmb bmf bmi bmm bmo bmr bmt bmu bob bof boi bom boo bor bot bou brb brf bri brm bro brr brt bru btb btf bti btm bto btr btt btu bub buf bui bum buo bur but buu fbb fbf fbi fbm fbo fbr fbt fbu fff ffi ffm ffo ffr fft ffu fib fif fii fim fir fit fiu fmb fmf fmi fmm fmo fmr fmt fmu fob fof foi fom foo for fot fou frb frf fri frm fro frr frt fru ftb ftf fti ftm fto ftr ftt ftu fub fuf fui fum fuo fur fut fuu i-f ibb ibf ibi ibm ibo ibr ibt ibu ifb iff ifi ifm ifo ifr ift ifu iib iif iii iim iio iir iit iiu im- imb imf imi imm imo imt imu io- iob iof ioi iom ioo ior iot iou ir- irb irf iri irm iro irr irt iru itb itf iti itm ito itt itu iu- iub iui ium iur iut m-f m-o m-r mbb mbf mbi mbm mbo mbr mbt mbu mfb mff mfi mfm mfo mfr mft mfu mi- mib mif mii mim mio mir mit miu mmb mmf mmi mmm mmo mmr mmt mmu mob mof moi mom moo mor mot mou mrb mrf mri mrm mro mrr mrt mru mtb mtf mti mtm mto mtr mtt mtu mub muf mui mum mur mut muu o-i ob- obb obf obi obm obo obr obt obu of- ofb off ofi ofm ofo ofr oft ofu oib oif oii oim oio oir oit oiu om- omb omf omi omm omo omr omt omu oo- oob oof ooi oom ooo oor oot or- orb orf ori orm oro orr ort oru ot- otb otf oti otm oto otr ott otu ou- ouf oui oum ouo our out rbb rbf rbi rbm rbo rbr rbt rbu rfb rff rfi rfm rfo rfr rft rfu rib rif rii rim rio rir rit rmb rmf rmi rmm rmo rmr rmt rob rof roi rom roo ror rot rou rrb rrf rri rrm rrr rrt rru rtb rtf rti rtm rto rtr rtt rtu rub ruf rui rum ruo rur rut ruu tbb tbf tbi tbm tbo tbr tbt tbu tfb tff tfi tfm tfo tfr tft tfu tib tif tii tim tio tir tit tiu tmb tmf tmi tmm tmo tmr tmt tmu to- tob tof toi tom too tor tot tou trb trf tri trm tro trr trt tru ttb ttf tti ttm tto ttr ttt ttu tub tuf tui tum tuo tur tut tuu ubb ubf ubi ubo ubr ubt ubu uff ufi ufm ufo ufr uft ufu uib uif uii uim uio uir uit uiu um- umb umf umi umm umo umr umt umu uob uom uoo uor uot ur- urb urf uri urm uro urr urt uru utb utf uti utm uto utr utt utu uum uur uut uuu

bbbb bftt bibb bibi bibo biff bifi bimo bio- bioi biot biou birb biri biro birr birt biru bito bitt bitu bmir bmmi bobb bobi bobo bobu boff bofu boi- boii boim boit boiu bomb bomi bomt bomu boob boof boom boor boot bor- borf bori borm boro borr bort boru botb boti boto bott bouf boum bour bout brfm brfu brim brio brit brob brom broo bror brot brou brrm brrr brum brut btob btor btrt bttb bubb bubi bubo bubu buff bufo bufr buif buir buit buiu bum- bumb bumf bur- burb buri burm buro burr burt buru but- buti buto butt fbom ffff ffii ffrr fftf fiff fifi fifm fifo fift fiii fimo fimr fior firm fiti fitt fmri fobt fofo fomo fomt foof foom foot for- forb fori form foro forr fort foti fotm foto fott four fout frib frim frio frit frob from frot frou frub frum ftii ftub fubb fubu fuff fufu fuir fuit fumi fumo fuor fur- furi furm furo furr furt futi futo futu ibbm ibfi ibim ibot ibri ibro ibtb ifbb ifim ifit ifor ifrb ifrf ifri ifto iiii iiio iiit iioi iioo iitm iitr iitt iium imbi imfi imir imit immi immo immt imof imou imri imro imrr imto iobi ioii ioio ioit iomo ioof iooi iooo iori iotf ioto irbm irfm irfu iri- irio irmo irob irri irtf irti itif itim itmo itof itoi itoo itor itou itrf itri ittf itto itum itur iuiu mbim mbio mbou mfbm mfor mfou mfri mftf miff mifi miii miio miit mim- mimi mimo mio- miri miro mirr mirt miru mit- mitb miti mitm mito mitt mitu miui mmff mmii mmmm mmor mmrf mobb mobi mobo moff mofo mofu moif moii moio moir moit momi momo momu moob moor moot morb morf mori moro mort moru motb moti motm moto mott motu mouf mour mout mrbb mrbm mrtm mrtt mtbo mtff mtom mtor mtrr mttr mubi mubo muff mufi mufu muir muit mumm mumo mumu muri muro murr murt muru muti muto mutt mutu muut obbo obit oboi obor obot obri obro off- offo offr offu ofit ofor oiii oimb oirt oiti oium ombo ombu omim omio omit omo- omoi omoo omor omri omro omuo oobi ooff oooo oort ootb orbb orbi orbo orbu orff orfi orfu ori- orif orio orit ormo oro- orof orom oror orot orri orro orto orub orum otif otit oto- otof otoo otor otro otti otto ottu otur ouff ouii ouir ouit oumi our- ouro ourt out- outb outi outo ouu- rbbb rbbr rib- ribo ribu riff rift rifu riif rimi rimm rimo rimu riom riot riou riri riti rito ritt ritu rmif rmtu rob- robb robi robo robt robu roff rofo roif roio roir roit roiu romb romi romm romo roob roof rooi room roor root rori roro rort roru roti roto rotr rott roub rouf roum rout rrif rrrr rrum rtbf rtfb rtfm rtmi rubb