bbb bbg bbi bbn bbo bbr bbs bbt bgb bgg bgi bgn bgo bgr bgs bgt bi- bib big bii bin bio bir bis bit bnb bng bni bnn bno bnr bns bnt bob bog boi bon boo bor bos bot brb brg bri brn bro brr brs brt bsb bsg bsi bsn bso bsr bss bst btb btg bti btn bto btr bts btt gbg gbi gbn gbo gbr gbs gbt ggb ggg ggi ggn ggo ggr ggs ggt gib gig gii gin gio gir gis git gnb gni gnn gno gnr gns gnt gob gog goi gon goo gor gos got grb grg gri grn gro grr grs grt gsb gsg gsi gsn gso gsr gss gst gtb gtg gti gtn gto gtr gts gtt ibb ibg ibi ibn ibo ibr ibs ibt igb igg igi ign igo igr igs igt iib iii iin iio iir iis iit in- inb ing ini inn ino inr ins int io- iob iog ioi ion ioo ior ios iot ir- irb irg iri irn iro irr irs irt is- isb isg isi isn iso isr iss ist itb itg iti itn ito its itt n-i nbb nbg nbi nbn nbo nbr nbs nbt ngb ngg ngi ngn ngo ngs ngt nib nig nii nin nio nir nis nit nnb nng nni nnn nno nns nnt no- nob nog noi non noo nor nos not nrb nrg nri nrn nro nrr nrs nrt nsb nsg nsi nsn nso nsr nss nst ntb ntg nti ntn nto ntr nts ntt o-i ob- obb obg obi obn obo obr obs obt ogg ogi ogn ogo ogs ogt oib oii oin oio oir ois oit on- onb ong oni onn ono onr ons ont oo- oob oog ooi oon ooo oor oos oot or- orb org ori orn oro orr ors ort os- osb osg osi osn oso osr oss ost ot- otb otg oti otn oto otr ots ott rbb rbg rbi rbn rbo rbr rbs rbt rgb rgg rgi rgn rgo rgr rgs rgt rib rig rii rin rio rir ris rit rnb rng rni rnn rno rnr rns rnt rob rog roi ron roo ror ros rot rrb rrg rri rrn rrr rrs rrt rsb rsg rsi rsn rso rsr rss rst rtb rtg rti rtn rto rtr rts rtt sbb sbg sbi sbn sbo sbr sbs sbt sgb sgg sgi sgn sgo sgr sgs sgt sib sig sii sin sio sir sis sit snb sng sni snn sno snr sns snt sob sog soi son soo sor sos sot sr- srb srg sri srn sro srr srs srt ss- ssb ssg ssi ssn sso ssr sss sst stb stg sti stn sto str sts stt tbb tbg tbi tbn tbo tbr tbs tbt tgb tgg tgi tgn tgo tgr tgs tgt tib tig tii tin tio tir tis tit tnb tng tni tnn tno tnr tns tnt to- tob tog toi ton too tor tos tot trb trg tri trn tro trr trs trt tsb tsg tsi tsn tso tsr tss tst ttb ttg tti ttn tto ttr tts ttt