b-p bbb bbe bbg bbi bbk bbp bbs be- beb bee beg bei bek bep bes bgb bge bgg bgi bgk bgp bgs bi- bib bie big bii bik bip bis bkb bke bkg bkk bkp bks bpb bpe bpg bpi bpp bps bsb bse bsg bsi bsk bsp bss ebb ebe ebg ebi ebk ebp ebs eeb eee eeg eek eep ees egb ege egg egi egp egs eib eie eig eii eik eip eis ekb eke ekg eki ekp eks ep- epb epe epg epi epp eps es- esb ese esg esi esk esp ess g-p gbe gbg gbi gbk gbp gbs ge- geb gee geg gei gek gep ges ggb ggg ggi ggp ggs gib gie gig gii gik gip gis gkb gkp gks gpb gpe gpg gpi gpk gpp gps gsb gse gsg gsi gsk gsp gss ibb ibe ibg ibi ibk ibp ibs ie- iee ieg iei iek iep ies igb ige igg igi igk igp igs iib iie iii iip iis ikb ike iki ikk iks ipb ipe ipg ipi ipp ips is- isb ise isg isi isk isp iss kbb kbe kbi kbk kbp kbs ke- keb kee keg kei kek kep kes kgb kgi kgp kgs kib kie kig kii kik kip kis kkb kke kki kkk kkp kks kpe kpi kpk kpp kps ksb kse ksg ksi ksk ksp kss p-p pbb pbe pbg pbi pbk pbp pbs peb pee peg pei pek pep pes pgb pge pgg pgi pgk pgp pgs pib pie pig pii pik pip pis pkb pke pkg pki pkp pks ppb ppe ppg ppi ppk ppp pps ps- psb pse psg psi psk psp pss sbb sbe sbg sbi sbk sbp sbs se- seb see seg sei sek sep ses sgb sge sgg sgi sgk sgp sgs sib sie sig sii sik sip sis sk- skb ske skg ski skk skp sks spb spe spg spi spk spp sps ss- ssb sse ssg ssi ssk ssp sss