-er b-p bbb bbe bbk bbo bbp bbr bbs bbw be- beb bee bek beo bep ber bes bew bkb bke bkk bko bkp bkr bks bkw bob boe bok boo bop bor bos bow bpb bpe bpo bpp bpr bps bpw brb bre brk bro brp brr brs brw bsb bse bsk bso bsp bsr bss bsw bwb bwk bwo bwp bwr bws ebb ebe ebk ebo ebp ebr ebs ebw eeb eee eek eeo eep eer ees eew ekb eke eko ekp ekr eks eo- eob eoe eok eoo eop eor eos eow ep- epb epe epo epp epr eps epw erb ere erk ero erp err ers erw es- esb ese esk eso esp esr ess esw ewb ewe ewk ewo ewp ewr ews eww kbb kbe kbk kbo kbp kbr kbs kbw ke- keb kee kek keo kep ker kes kew kkb kke kkk kkp kkr kks kob koe kok koo kop kor kos kow kpe kpk kpo kpp kpr kps kpw krk kro krp krr krs krw ksb kse ksk kso ksp ksr kss ksw kw- kwk kwo kwp kws kww ob- obb obe obk obo obp obr obs obw oeb oee oeo oep oer oes okb oke okk oko okp okr oks okw oo- oob ook ooo oop oor oos oow op- opb ope opk opo opp opr ops opw or- orb ore ork oro orp orr ors os- osb ose osk oso osp osr oss osw owb owe owk owo owp ows oww p-p pbb pbe pbk pbo pbp pbr pbs pbw peb pee pek peo pep per pes pew pkb pke pko pkp pkr pks pob poe pok poo pop por pos pow ppb ppe ppk ppo ppp ppr pps ppw prb pre prk pro prp prr prs prw ps- psb pse psk pso psp psr pss psw pwb pwe pwo pwp pwr pws rbb rbe rbk rbo rbp rbr rbs rbw re- reb ree rek reo rep rer res rew rkb rke rkk rko rkp rks rob roe rok roo rop ror ros row rpb rpe rpk rpo rpp rpr rps rpw rrb rrk rrp rrr rrs rsb rse rsk rso rsp rsr rss rsw rwb rwe rwr rws sbb sbe sbk sbo sbp sbr sbs sbw se- seb see sek seo sep ser ses sew sk- skb ske skk sko skp skr sks skw sob soe sok soo sop sor sos sow spb spe spk spo spp spr sps spw sr- srb sre srk sro srp srr srs srw ss- ssb sse ssk sso ssp ssr sss ssw swb swe swk swo swp swr sws wbb wbe wbo wbr wbs wbw web wee wek weo wep wer wes wew wkb wke wko wkp wkr wks wkw wob woe wok woo wop wor wos wow wpb wpe wpk wpo wpp wpr wps wr- wre wrk wro wrp wrr wrs wrw wsb wse wsk wso wsp wsr wss wsw wwe wwo wwp www