-ol bbb bbf bbi bbl bbo bbr bbs bfb bff bfi bfl bfo bfr bfs bi- bib bif bii bil bio bir bis blb blf bli bll blo blr bls bob bof boi bol boo bor bos brb brf bri brl bro brr brs bsb bsf bsi bsl bso bsr bss fbb fbf fbi fbl fbo fbr fbs fff ffi ffl ffo ffr ffs fib fif fii fil fir fis flb flf fli fll flo flr fls fob fof foi fol foo for fos frb frf fri frl fro frr frs fsb fsf fsi fsl fso fsr fss i-f ibb ibf ibi ibl ibo ibr ibs ifb iff ifi ifl ifo ifr ifs iib iif iii iil iio iir iis il- ilb ilf ili ill ilo ilr ils io- iob iof ioi iol ioo ior ios ir- irb irf iri irl iro irr irs is- isb isf isi isl iso isr iss lbb lbf lbi lbl lbo lbr lbs lfb lff lfi lfl lfo lfr lfs lib lif lii lil lio lir lis llb llf lli lll llo llr lls lob lof loi lol loo lor los lrb lrf lri lro lrr lrs lsb lsf lsi lsl lso lsr lss o-i ob- obb obf obi obl obo obr obs of- ofb off ofi ofl ofo ofr ofs oib oif oii oil oio oir ois olb olf oli oll olo ols oo- oob oof ooi ool ooo oor oos or- orb orf ori orl oro orr ors os- osb osf osi osl oso osr oss rbb rbf rbi rbl rbo rbr rbs rfb rff rfi rfl rfo rfr rfs rib rif rii ril rio rir ris rlf rli rll rlo rlr rls rob rof roi rol roo ror ros rrb rrf rri rrl rrr rrs rsb rsf rsi rsl rso rsr rss sbb sbf sbi sbl sbo sbr sbs sfb sff sfi sfl sfo sfr sfs sib sif sii sil sio sir sis slb slf sli sll slo slr sls sob sof soi sol soo sor sos sr- srb srf sri srl sro srr srs ss- ssb ssf ssi ssl sso ssr sss

bbbb bbbs bblb bbls bffl bffs bfsi bfsr bibb bibi bibl bibo bibs biff bifi biis bili bill bilo bils bio- bioi biol bios birb biri birl biro birr birs bis- bisl biso biss blio blir blis blls blob bloo blss bobb bobi bobo bobs boff bofs boi- boii boil bois boli boll bolo bols boob boof bool boor boos bor- borf bori boro borr bors bosi boso boss bril brio bris brls brob brol broo bror bros brrr brrs brsb brsr bsff bsfs bsos fbis fbrs ffff ffii ffrr ffss fibs fiff fifi fifo fiii fiil fili fill filo fils fior fios firs fisi fiss flii flis flob floo flor flos fobs fofo foil fois foli foll folo folr fols foof fool foos for- forb fori forl foro forr fors fosb fosi foso foss frib fril frio fris frob frol fros frsb frso fsfi fsfo fssf ibfi ibis ibos ibri ibro ibsf ibss ifbb ifil ifis ifor ifrb ifrf ifri ifsb ifso iiii iiio iiis iioi iioo iios iirs iisi iisr ilio ilir ilis ill- illi illo ills iloo ilos iobi ioii ioio iolo ioof iooi iooo ioos iori iors ioso iri- iril irio iris irlb irob irri irrs irsf isbl isil isis isls iso- isof isol isor isos isri issf issi isso issr isss lblr lbos lbrs libo libr libs liff lifl lifo liii liir liis lilb lili lill lilo lils lio- lior lios liri lirl liro lirr lirs lisi liso liss llbs llll lloo lob- lobb lobi lobo lobs loff lofi loif loir lois loli loll lolo lols loob loof lool loor loos lori loro lors losi loso loss lrif lroi lrrr ls-r lsof lsso lssr obbo obis obls oboi obol obor obos obri obro obsr obss off- offo offr offs ofor oiii oils oios olbo olfs olib olio olis olli ollo olof olor olos olsi oobi ooff oofs oolo oooo ooos oosi orbb orbi orbo orbs orff orfi orfs ori- orif oril orio oris orlo oro- orof oror oros orri orro orrs orsi orso osii osis osli oslo osoi osoo osor osos osro ossb ossi osso rbbb rbbr rbbs rbis rbsl rbss rffl rib- ribo ribs riff rifs riif riis rill rilo riol rios riri rirs risi riso riss rlif rlls rob- robb robi robo robs roff rofl rofo roif roil roio roir rois rolf roll rolo roob roof rooi rool roor roos rori roro rosi roso ross rrif rrrr rsbi rsis rsos rssl s-ib s-ii s-os sbbs sbor sbsi sfio sfls sfor sfos sfro sfss sibi sibo sibs siff sifl sifo sifr sil- silf sili sill silo sils siol sior sios sirf siri siro sirr sirs sisi siss sl-i slib slir slob sloo slos slrs sobo sobr sobs sofi sofo soif soil soir sois solf soli soll solo solr sols soof sool soor soos sorb sori soro sorr sors sosi soso soss srfi srib sris sros ssbr ssfl ssis ssri ssrl ssrs sssb sssf sssi ssss

bi-lo bibbo bibbs bibio bibis bibos bibri biffi biffo biffs bifor bilbi bilbo bili- bilif bilis billi billo bills bilos bilsi bioss birls birol biros birrs bisfi bliss blobs blois bloor blorb bloso bloss bo-bo bobbi bobos bobr bobri boffi boffo boffs boilo boils boios boiro bolis boll- bolli bollo bolls bolos boobs boofs bools boors borbo borio boris boro- boroo boros borro borsi bosio bosor bossi bosso brill brisb brisi briss brobo brobs broil broll brolo brool broos bross brrrr fibis fibr- fibro fili- fillo fills fiori firos fisbo fissi flirr flobs floor floro floss fofos foils foios foir- folio folli follo foloi fooli fools forbs forio forli foros forro forso forss fosil friis frill friol frios friso friss frobs fsoil ibibo ibill iblis ibros if-- ifill iiiii iiris iisir ilfis iliff ilio- ilios illos ilori ilsbo ilsol ioooi ioooo iorio irbis irill irios iris- iriss irobo irori irssi is-is isfor isili isill isilo isios isiro