b-p bbb bbg bbi bbn bbo bbp bbs bbt bgb bgg bgi bgn bgo bgp bgs bgt bi- bib big bii bin bio bip bis bit bnb bng bni bnn bno bnp bns bnt bob bog boi bon boo bop bos bot bpb bpg bpi bpn bpo bpp bps bpt bsb bsg bsi bsn bso bsp bss bst btb btg bti btn bto btp bts btt g-p gbg gbi gbn gbo gbp gbs gbt ggb ggg ggi ggn ggo ggp ggs ggt gib gig gii gin gio gip gis git gnb gni gnn gno gnp gns gnt gob gog goi gon goo gop gos got gpb gpg gpi gpn gpo gpp gps gpt gsb gsg gsi gsn gso gsp gss gst gtb gtg gti gtn gto gtp gts gtt ibb ibg ibi ibn ibo ibp ibs ibt igb igg igi ign igo igp igs igt iib iii iin iio iip iis iit in- inb ing ini inn ino inp ins int io- iob iog ioi ion ioo iop ios iot ipb ipg ipi ipn ipo ipp ips ipt is- isb isg isi isn iso isp iss ist itb itg iti itn ito itp its itt n-i nbb nbg nbi nbn nbo nbp nbs nbt ngb ngg ngi ngn ngo ngp ngs ngt nib nig nii nin nio nip nis nit nnb nng nni nnn nno nnp nns nnt no- nob nog noi non noo nop nos not npb npg npi npn npo npp nps npt nsb nsg nsi nsn nso nsp nss nst ntb ntg nti ntn nto ntp nts ntt o-i ob- obb obg obi obn obo obp obs obt ogg ogi ogn ogo ogp ogs ogt oib oii oin oio oip ois oit on- onb ong oni onn ono onp ons ont oo- oob oog ooi oon ooo oop oos oot op- opb opg opi opn opo opp ops opt os- osb osg osi osn oso osp oss ost ot- otb otg oti otn oto otp ots ott p-p pbb pbg pbi pbn pbo pbp pbs pbt pgb pgg pgi pgn pgo pgp pgs pgt pib pig pii pin pio pip pis pit pn- pnb png pni pnn pno pnp pns pnt pob pog poi pon poo pop pos pot ppb ppg ppi ppn ppo ppp pps ppt ps- psb psg psi psn pso psp pss pst pt- ptb ptg pti ptn pto ptp pts ptt sbb sbg sbi sbn sbo sbp sbs sbt sgb sgg sgi sgn sgo sgp sgs sgt sib sig sii sin sio sip sis sit snb sng sni snn sno snp sns snt sob sog soi son soo sop sos sot spb spg spi spn spo spp sps spt ss- ssb ssg ssi ssn sso ssp sss sst stb stg sti stn sto stp sts stt tbb tbg tbi tbn tbo tbp tbs tbt tgb tgg tgi tgn tgo tgp tgs tgt tib tig tii tin tio tip tis tit tnb tng tni tnn tno tnp tns tnt to- tob tog toi ton too top tos tot tpb tpg tpi tpn tpo tpp tps tpt tsb tsg tsi tsn tso tsp tss tst ttb ttg tti ttn tto ttp tts ttt