bbb bbg bbi bbn bbo bbs bbt bgb bgg bgi bgn bgo bgs bgt bi- bib big bii bin bio bis bit bnb bng bni bnn bno bns bnt bob bog boi bon boo bos bot bsb bsg bsi bsn bso bss bst btb btg bti btn bto bts btt gbg gbi gbn gbo gbs gbt ggb ggg ggi ggn ggo ggs ggt gib gig gii gin gio gis git gnb gni gnn gno gns gnt gob gog goi gon goo gos got gsb gsg gsi gsn gso gss gst gtb gtg gti gtn gto gts gtt ibb ibg ibi ibn ibo ibs ibt igb igg igi ign igo igs igt iib iii iin iio iis iit in- inb ing ini inn ino ins int io- iob iog ioi ion ioo ios iot is- isb isg isi isn iso iss ist itb itg iti itn ito its itt n-i nbb nbg nbi nbn nbo nbs nbt ngb ngg ngi ngn ngo ngs ngt nib nig nii nin nio nis nit nnb nng nni nnn nno nns nnt no- nob nog noi non noo nos not nsb nsg nsi nsn nso nss nst ntb ntg nti ntn nto nts ntt o-i ob- obb obg obi obn obo obs obt ogg ogi ogn ogo ogs ogt oib oii oin oio ois oit on- onb ong oni onn ono ons ont oo- oob oog ooi oon ooo oos oot os- osb osg osi osn oso oss ost ot- otb otg oti otn oto ots ott sbb sbg sbi sbn sbo sbs sbt sgb sgg sgi sgn sgo sgs sgt sib sig sii sin sio sis sit snb sng sni snn sno sns snt sob sog soi son soo sos sot ss- ssb ssg ssi ssn sso sss sst stb stg sti stn sto sts stt tbb tbg tbi tbn tbo tbs tbt tgb tgg tgi tgn tgo tgs tgt tib tig tii tin tio tis tit tnb tng tni tnn tno tns tnt to- tob tog toi ton too tos tot tsb tsg tsi tsn tso tss tst ttb ttg tti ttn tto tts ttt