-er b-p bbb bbe bbi bbm bbp bbr bbs bbt be- beb bee bei bem bep ber bes bet bi- bib bie bii bim bip bir bis bit bmb bme bmi bmm bmp bmr bms bmt bpb bpe bpi bpm bpp bpr bps bpt brb bre bri brm brp brr brs brt bsb bse bsi bsm bsp bsr bss bst btb bte bti btm btp btr bts btt ebb ebe ebi ebm ebp ebr ebs ebt eeb eee eem eep eer ees eet eib eie eii eim eip eir eis eit em- emb eme emi emm emp emr ems emt ep- epb epe epi epm epp epr eps ept erb ere eri erm erp err ers ert es- esb ese esi esm esp esr ess est etb ete eti etm etp etr ets ett ibb ibe ibi ibm ibp ibr ibs ibt ie- iee iei iem iep ier ies iet iib iie iii iim iip iir iis iit im- imb ime imi imm imp ims imt ipb ipe ipi ipm ipp ipr ips ipt ir- irb ire iri irm irp irr irs irt is- isb ise isi ism isp isr iss ist itb ite iti itm itp its itt m-r mbb mbe mbi mbm mbp mbr mbs mbt meb mee mei mem mep mer mes met mi- mib mie mii mim mip mir mis mit mmb mme mmi mmm mmp mmr mms mmt mpb mpe mpi mpm mpp mpr mps mpt mrb mre mri mrm mrp mrr mrs mrt msb mse msi msm msp msr mss mst mtb mte mti mtm mtp mtr mts mtt p-p pbb pbe pbi pbm pbp pbr pbs pbt peb pee pei pem pep per pes pet pib pie pii pim pip pir pis pit pmb pme pmi pmm pmp pmr pms pmt ppb ppe ppi ppm ppp ppr pps ppt prb pre pri prm prp prr prs prt ps- psb pse psi psm psp psr pss pst pt- ptb pte pti ptm ptp ptr pts ptt rbb rbe rbi rbm rbp rbr rbs rbt re- reb ree rei rem rep rer res ret rib rie rii rim rip rir ris rit rmb rme rmi rmm rmp rmr rms rmt rpb rpe rpi rpm rpp rpr rps rpt rrb rri rrm rrp rrr rrs rrt rsb rse rsi rsm rsp rsr rss rst rtb rte rti rtm rtp rtr rts rtt sbb sbe sbi sbm sbp sbr sbs sbt se- seb see sei sem sep ser ses set sib sie sii sim sip sir sis sit smb sme smi smm smp smr sms smt spb spe spi spm spp spr sps spt sr- srb sre sri srm srp srr srs srt ss- ssb sse ssi ssm ssp ssr sss sst stb ste sti stm stp str sts stt tbb tbe tbi tbm tbp tbr tbs tbt te- teb tee tei tem tep ter tes tet tib tie tii tim tip tir tis tit tmb tme tmi tmm tmp tmr tms tmt tpb tpe tpi tpm tpp tpr tps tpt trb tre tri trm trp trr trs trt tsb tse tsi tsm tsp tsr tss tst ttb tte tti ttm ttp ttr tts ttt