-er b-p bbb bbe bbi bbm bbo bbp bbr bbt be- beb bee bei bem beo bep ber bet bi- bib bie bii bim bio bip bir bit bmb bme bmi bmm bmo bmp bmr bmt bob boe boi bom boo bop bor bot bpb bpe bpi bpm bpo bpp bpr bpt brb bre bri brm bro brp brr brt btb bte bti btm bto btp btr btt ebb ebe ebi ebm ebo ebp ebr ebt eeb eee eem eeo eep eer eet eib eie eii eim eio eip eir eit em- emb eme emi emm emo emp emr emt eo- eob eoe eoi eom eoo eop eor eot ep- epb epe epi epm epo epp epr ept erb ere eri erm ero erp err ert etb ete eti etm eto etp etr ett ibb ibe ibi ibm ibo ibp ibr ibt ie- iee iei iem iep ier iet iib iie iii iim iio iip iir iit im- imb ime imi imm imo imp imt io- iob ioe ioi iom ioo iop ior iot ipb ipe ipi ipm ipo ipp ipr ipt ir- irb ire iri irm iro irp irr irt itb ite iti itm ito itp itt m-o m-r mbb mbe mbi mbm mbo mbp mbr mbt meb mee mei mem meo mep mer met mi- mib mie mii mim mio mip mir mit mmb mme mmi mmm mmo mmp mmr mmt mob moe moi mom moo mop mor mot mpb mpe mpi mpm mpo mpp mpr mpt mrb mre mri mrm mro mrp mrr mrt mtb mte mti mtm mto mtp mtr mtt o-i ob- obb obe obi obm obo obp obr obt oeb oee oei oem oeo oep oer oet oib oie oii oim oio oip oir oit om- omb ome omi omm omo omp omr omt oo- oob ooi oom ooo oop oor oot op- opb ope opi opm opo opp opr opt or- orb ore ori orm oro orp orr ort ot- otb ote oti otm oto otp otr ott p-p pbb pbe pbi pbm pbo pbp pbr pbt peb pee pei pem peo pep per pet pib pie pii pim pio pip pir pit pmb pme pmi pmm pmo pmp pmr pmt pob poe poi pom poo pop por pot ppb ppe ppi ppm ppo ppp ppr ppt prb pre pri prm pro prp prr prt pt- ptb pte pti ptm pto ptp ptr ptt rbb rbe rbi rbm rbo rbp rbr rbt re- reb ree rei rem reo rep rer ret rib rie rii rim rio rip rir rit rmb rme rmi rmm rmo rmp rmr rmt rob roe roi rom roo rop ror rot rpb rpe rpi rpm rpo rpp rpr rpt rrb rri rrm rrp rrr rrt rtb rte rti rtm rto rtp rtr rtt tbb tbe tbi tbm tbo tbp tbr tbt te- teb tee tei tem teo tep ter tet tib tie tii tim tio tip tir tit tmb tme tmi tmm tmo tmp tmr tmt to- tob toe toi tom too top tor tot tpb tpe tpi tpm tpo tpp tpr tpt trb tre tri trm tro trp trr trt ttb tte tti ttm tto ttp ttr ttt