-ol bbb bbf bbg bbi bbl bbo bbs bbt bfb bff bfg bfi bfl bfo bfs bft bgb bgf bgg bgi bgl bgo bgs bgt bi- bib bif big bii bil bio bis bit blb blf blg bli bll blo bls blt bob bof bog boi bol boo bos bot bsb bsf bsg bsi bsl bso bss bst btb btf btg bti btl bto bts btt fbb fbf fbg fbi fbl fbo fbs fbt fff ffg ffi ffl ffo ffs fft fgb fgf fgg fgi fgl fgs fgt fib fif fig fii fil fis fit flb flf flg fli fll flo fls flt fob fof fog foi fol foo fos fot fsb fsf fsg fsi fsl fso fss fst ftb ftf ftg fti ftl fto fts ftt gbf gbg gbi gbl gbo gbs gbt gfb gff gfi gfl gfo gfs gft ggb ggg ggi ggo ggs ggt gib gif gig gii gil gio gis git glb glf glg gli gll glo gls glt gob gof gog goi gol goo gos got gsb gsf gsg gsi gsl gso gss gst gtb gtf gtg gti gtl gto gts gtt i-f ibb ibf ibg ibi ibl ibo ibs ibt ifb iff ifg ifi ifl ifo ifs ift igb igf igg igi igl igo igs igt iib iif iii iil iio iis iit il- ilb ilf ilg ili ill ilo ils ilt io- iob iof iog ioi iol ioo ios iot is- isb isf isg isi isl iso iss ist itb itf itg iti itl ito its itt lbb lbf lbg lbi lbl lbo lbs lbt lfb lff lfg lfi lfl lfo lfs lft lgb lgf lgg lgi lgl lgo lgs lgt lib lif lig lii lil lio lis lit llb llf llg lli lll llo lls llt lob lof log loi lol loo los lot lsb lsf lsg lsi lsl lso lss lst ltb ltf ltg lti ltl lto lts ltt o-i ob- obb obf obg obi obl obo obs obt of- ofb off ofg ofi ofl ofo ofs oft ogf ogg ogi ogl ogo ogs ogt oib oif oii oil oio ois oit olb olf olg oli oll olo ols olt oo- oob oof oog ooi ool ooo oos oot os- osb osf osg osi osl oso oss ost ot- otb otf otg oti otl oto ots ott sbb sbf sbg sbi sbl sbo sbs sbt sfb sff sfg sfi sfl sfo sfs sft sgb sgf sgg sgi sgl sgo sgs sgt sib sif sig sii sil sio sis sit slb slf slg sli sll slo sls slt sob sof sog soi sol soo sos sot ss- ssb ssf ssg ssi ssl sso sss sst stb stf stg sti stl sto sts stt tbb tbf tbg tbi tbl tbo tbs tbt tfb tff tfg tfi tfl tfo tfs tft tgb tgf tgg tgi tgl tgo tgs tgt tib tif tig tii til tio tis tit tlf tlg tli tll tlo tls tlt to- tob tof tog toi tol too tos tot tsb tsf tsg tsi tsl tso tss tst ttb ttf ttg tti ttl tto tts ttt

bbbb bbbs bblb bbls bffl bffs bfgf bfsi bfts bftt bggs bgst bibb bibi bibl bibo bibs biff bifi bigb bigg bigo bigs bigt biis bili bill bilo bils bilt bio- biog bioi biol bios biot bis- bisl biso biss bist bito bits bitt blbt blio blis blit blls blob blog bloo blot blss blst blts bobb bobi bobo bobs boff bofs bogg bogi bogo bogs bogt boi- boii boil bois boit bolg boli boll bolo bols bolt boob boof boog bool boos boot bosi boso boss bost botb boti boto bots bott bsff bsfs bsgs bsos bsts btob btss bttb fbis ffff ffii ffss fftf fgts fibs fiff fifi fifo fift figg figl figo figs fiii fiil fili fill filo fils fios fisi fiss fist fiti fits fitt flig flii flis flit flob flog floo flos flot fltg flts fobs fobt fofo fogg fogi fogl fogo fogs foil fois foli foll folo fols folt foof fool foos foot fosb fosi foso foss fost foti foto fots fott fsfi fsfo fsgs fssf ft-l ftii ftlb ftos gbbo gbbs ggbt ggfg gggg ggss gibb gibs giff gifs gift gigg gigi gigo gigs giis gilf gilg gili gill gilo gils gilt giog gioi giss gist gito gits gli- glib glis glit glob glof glog glos glot gobi gobl gobo gobs goff gogi gogo gogs goif gois goit golf goli goll golo gols golt goof goog gooi gool goos goot gosi goso goss gost goti gotl goto gots gott gsif gsis gsli gsos gtfo gtos i-go ibfi ibis ibos ibot ibsf ibss ibtb ibtl ibts ifbb ifil ifis ifit ifsb ifso ifto igbo iggs igil igis igli iglo igoo igot igso iiii iiio iiis iiit iioi iioo iios iisi iist iitt ilio ilis ilit ill- illi illo ills illt ilog iloo ilos ilot ilts iobi iogt 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 itgo itgs itif itil itis itll itof itoi itol itoo itos itsf itsi itso ittf itto lbgt lbos lfts lgbt lgfl lgts libo libs liff lifg lifl lifo lift ligg ligi ligo liig liii liis lilb lilg 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 log- logb logi logo logs 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 ltgs ltib ltsi obbo obis obit obls oboi obol obos obot obss obst obts off- offo offs ofgo ofit ofst ogb oggi ogli ogog ogoi ogsi oigo oiii oils oios oist oiti olbo olfs olib olig olio olis olit olli ollo olof olog olos olot olsi olst oobi ooff oofs oolo oooo ooos oosi oost ootb oots