-ol bbb bbf bbg bbi bbl bbn bbo bbs bbt bfb bff bfg bfi bfl bfn bfo bfs bft bgb bgf bgg bgi bgl bgn bgo bgs bgt bi- bib bif big bii bil bin bio bis bit blb blf blg bli bll bln blo bls blt bnb bnf bng bni bnl bnn bno bns bnt bob bof bog boi bol bon boo bos bot bsb bsf bsg bsi bsl bsn bso bss bst btb btf btg bti btl btn bto bts btt fbb fbf fbg fbi fbl fbn fbo fbs fbt fff ffg ffi ffl ffn ffo ffs fft fgb fgf fgg fgi fgl fgn fgs fgt fib fif fig fii fil fin fis fit flb flf flg fli fll fln flo fls flt fnb fnf fng fni fnl fnn fns fnt fob fof fog foi fol fon foo fos fot fsb fsf fsg fsi fsl fsn fso fss fst ftb ftf ftg fti ftl ftn fto fts ftt gbf gbg gbi gbl gbn gbo gbs gbt gfb gff gfi gfl gfo gfs gft ggb ggg ggi ggn ggo ggs ggt gib gif gig gii gil gin gio gis git glb glf glg gli gll gln glo gls glt gnb gnf gni gnl gnn gno gns gnt gob gof gog goi gol gon goo gos got gsb gsf gsg gsi gsl gsn gso gss gst gtb gtf gtg gti gtl gtn gto gts gtt i-f ibb ibf ibg ibi ibl ibn ibo ibs ibt ifb iff ifg ifi ifl ifn ifo ifs ift igb igf igg igi igl ign igo igs igt iib iif iii iil iin iio iis iit il- ilb ilf ilg ili ill iln ilo ils ilt in- inb inf ing ini inl inn ino ins int io- iob iof iog ioi iol ion ioo ios iot is- isb isf isg isi isl isn iso iss ist itb itf itg iti itl itn ito its itt lbb lbf lbg lbi lbl lbo lbs lbt lfb lff lfg lfi lfl lfn lfo lfs lft lgb lgf lgg lgi lgl lgn lgo lgs lgt lib lif lig lii lil lin lio lis lit llb llf llg lli lll lln llo lls llt lnb lng lni lnl lnn lno lns lnt lob lof log loi lol lon loo los lot lsb lsf lsg lsi lsl lsn lso lss lst ltb ltf ltg lti ltl lto lts ltt n-i nbb nbf nbg nbi nbl nbn nbo nbs nbt nfb nff nfi nfl nfn nfo nfs nft ngb ngf ngg ngi ngl ngn ngo ngs ngt nib nif nig nii nil nin nio nis nit nlb nlf nlg nli nll nln nlo nls nlt nnb nnf nng nni nnl nnn nno nns nnt no- nob nof nog noi nol non noo nos not nsb nsf nsg nsi nsl nsn nso nss nst ntb ntf ntg nti ntn nto nts ntt o-i ob- obb obf obg obi obl obn obo obs obt of- ofb off ofg ofi ofl ofn ofo ofs oft ogf ogg ogi ogl ogn ogo ogs ogt oib oif oii oil oin oio ois oit olb olf olg oli oll oln olo ols olt on- onb onf ong oni onl onn ono ons ont oo- oob oof oog ooi ool oon ooo oos oot os- osb osf osg osi osl osn oso oss ost ot- otb otf otg oti otl otn oto ots ott sbb sbf sbg sbi sbl sbn sbo sbs sbt sfb sff sfg sfi sfl sfn sfo sfs sft sgb sgf sgg sgi sgl sgn sgo sgs sgt sib sif sig sii sil sin sio sis sit slb slf slg sli sll sln slo sls slt snb snf sng sni snl snn sno sns snt sob sof sog soi sol son soo sos sot ss- ssb ssf ssg ssi ssl ssn sso sss sst stb stf stg sti stl stn sto sts stt tbb tbf tbg tbi tbl tbn tbo tbs tbt tfb tff tfg tfi tfl tfn tfo tfs tft tgb tgf tgg tgi tgl tgn tgo tgs tgt tib tif tig tii til tin tio tis tit tlf tlg tli tll tln tlo tls tlt tnb tnf tng tni tnl tnn tno tns tnt to- tob tof tog toi tol ton too tos tot tsb tsf tsg tsi tsl tsn tso tss tst ttb ttf ttg tti ttl ttn tto tts ttt