-ol bbb bbf bbi bbl bbo bbs bbt bfb bff bfi bfl bfo bfs bft bi- bib bif bii bil bio bis bit blb blf bli bll blo bls blt bob bof boi bol boo bos bot bsb bsf bsi bsl bso bss bst btb btf bti btl bto bts btt fbb fbf fbi fbl fbo fbs fbt fff ffi ffl ffo ffs fft fib fif fii fil fis fit flb flf fli fll flo fls flt fob fof foi fol foo fos fot fsb fsf fsi fsl fso fss fst ftb ftf fti ftl fto fts ftt i-f ibb ibf ibi ibl ibo ibs ibt ifb iff ifi ifl ifo ifs ift iib iif iii iil iio iis iit il- ilb ilf ili ill ilo ils ilt io- iob iof ioi iol ioo ios iot is- isb isf isi isl iso iss ist itb itf iti itl ito its itt lbb lbf lbi lbl lbo lbs lbt lfb lff lfi lfl lfo lfs lft lib lif lii lil lio lis lit llb llf lli lll llo lls llt lob lof loi lol loo los lot lsb lsf lsi lsl lso lss lst ltb ltf lti ltl lto lts ltt o-i ob- obb obf obi obl obo obs obt of- ofb off ofi ofl ofo ofs oft oib oif oii oil oio ois oit olb olf oli oll olo ols olt oo- oob oof ooi ool ooo oos oot os- osb osf osi osl oso oss ost ot- otb otf oti otl oto ots ott sbb sbf sbi sbl sbo sbs sbt sfb sff sfi sfl sfo sfs sft sib sif sii sil sio sis sit slb slf sli sll slo sls slt sob sof soi sol soo sos sot ss- ssb ssf ssi ssl sso sss sst stb stf sti stl sto sts stt tbb tbf tbi tbl tbo tbs tbt tfb tff tfi tfl tfo tfs tft tib tif tii til tio tis tit tlf tli tll tlo tls tlt to- tob tof toi tol too tos tot tsb tsf tsi tsl tso tss tst ttb ttf tti ttl tto tts ttt

bbbb bbbs bblb bbls bffl bffs bfsi bfts bftt bibb bibi bibl bibo bibs biff bifi biis bili bill bilo bils bilt bio- bioi biol bios biot bis- bisl biso biss bist bito bits bitt blbt blio blis blit blls blob bloo blot blss blst blts bobb bobi bobo bobs boff bofs boi- boii boil bois boit boli boll bolo bols bolt boob boof bool boos boot bosi boso boss bost botb boti boto bots bott bsff bsfs bsos bsts btob btss bttb fbis ffff ffii ffss fftf fibs fiff fifi fifo fift fiii fiil fili fill filo fils fios fisi fiss fist fiti fits fitt flii flis flit flob floo flos flot flts fobs fobt fofo foil fois foli foll folo fols folt foof fool foos foot fosb fosi foso foss fost foti foto fots fott fsfi fsfo fssf ft-l ftii ftlb ftos ibfi ibis ibos ibot ibsf ibss ibtb ibtl ibts ifbb ifil ifis ifit ifsb ifso ifto iiii iiio iiis iiit iioi iioo iios iisi iist iitt ilio ilis ilit ill- illi illo ills illt iloo ilos ilot ilts iobi ioii ioio ioit iolo ioof iooi iooo ioos ioso iotf ioto isbl isbt isil isis isit isls iso- isof isol isos issf issi isso isss isti isto ists itbs itif itil itis itll itof itoi itol itoo itos itsf itsi itso ittf itto lbos lfts libo libs liff lifl lifo lift liii liis lilb lili lill lilo lils lilt lio- lios lisi liso liss list litb liti litl lito lits litt llbs llll lloo lob- lobb lobi lobo lobs loff lofi loft loif lois loit loli loll lolo lols loob loof lool loos loot losi loso loss lost loti lotl loto lots lott lsof lsso lsts ltbf ltbl ltib ltsi obbo obis obit obls oboi obol obos obot obss obst obts off- offo offs ofit ofst oiii oils oios oist oiti olbo olfs olib olio olis olit olli ollo olof olos olot olsi olst oobi ooff oofs oolo oooo ooos oosi oost ootb oots osii osis osli oslo osoi osoo osos ossb ossi osso osti osts otbs otif otis otit oto- otof otoo otos otso otti otto otts s-ib s-ii s-os sbbs sbot sbsi sbst sfio sfls sfos sfss sfts sibi sibo sibs siff sifl sifo sift siit sil- silf sili sill silo sils silt siol sios siot sisi siss sist sit- siti sito sits sitt sl-i slft slib slit slob sloo slos slot slst slts sobo sobs sobt sofi sofo soft soif soil sois soit solf soli soll solo sols solt soof sool soos soot sosi soso soss sost sotl soto sots ssfl ssis ssit sslt ssot sssb sssf sssi ssss sstb sstl ssts stbs stib stif stil stio stis stit stlo stlt stob stof stol stoo stos stot stsf stsi stss tbbs tbil tbit tbst tfot tfsi tfss tibi tibs tiff tifo tift tiit till tilo tils tilt tios tisb tisi tiso tiss tist titi tito tits titt tlli tlos tobi tobo tobs tobt toff tofi tofo toft toil tois toit tol- toli toll tolo tolt toof tool toos toot tosb tosi toso toss tost toti toto tots tott tsfl tsis tsob tsoi tsol tsos tssf tssi tsst tsts ttbb ttff ttss tttt

-itis bi-lo bibbo bibbs bibio bibis bibos biffi biffo biffs bilbi bilbo bili- bilif bilis billi billo bills bilos bilsi bioss bisfi bisto bitis bitit bitof bitti bitto bitts bliss blist blits blitt blobs blois bloso bloss bloto blots blott bo-bo bobbi bobos bobst bobts boffi boffo boffs boilo boils boios boist boito bolis boll- bolli bollo bolls bolos bolti bolto bolts boobs boofs booit bools boost boots bosio bossi bosso botis botos botti botts bsoft fibis fili- fillo fills filot filst fisbo fissi fisto fists fitil fitit fitof fitto fitts flist flits flobs floss floto fofos foils foios foist folio folli follo foloi fooli fools footi foots