eee eem eeo eep ees eet eie eii eim eio eip eis eit em- eme emi emm emo emp ems emt eo- eoe eoi eom eoo eop eos eot ep- epe epi epm epo epp eps ept es- ese esi esm eso esp ess est ete eti etm eto etp ets ett ie- iee iei iem iep ies iet iie iii iim iio iip iis iit im- ime imi imm imo imp ims imt io- ioe ioi iom ioo iop ios iot ipe ipi ipm ipo ipp ips ipt is- ise isi ism iso isp iss ist ite iti itm ito itp its itt m-o mee mei mem meo mep mes met mi- mie mii mim mio mip mis mit mme mmi mmm mmo mmp mms mmt moe moi mom moo mop mos mot mpe mpi mpm mpo mpp mps mpt mse msi msm mso msp mss mst mte mti mtm mto mtp mts mtt o-i oee oei oem oeo oep oes oet oie oii oim oio oip ois oit om- ome omi omm omo omp oms omt oo- ooi oom ooo oop oos oot op- ope opi opm opo opp ops opt os- ose osi osm oso osp oss ost ot- ote oti otm oto otp ots ott p-p pee pei pem peo pep pes pet pie pii pim pio pip pis pit pme pmi pmm pmo pmp pms pmt poe poi pom poo pop pos pot ppe ppi ppm ppo ppp pps ppt ps- pse psi psm pso psp pss pst pt- pte pti ptm pto ptp pts ptt se- see sei sem seo sep ses set sie sii sim sio sip sis sit sme smi smm smo smp sms smt soe soi som soo sop sos sot spe spi spm spo spp sps spt ss- sse ssi ssm sso ssp sss sst ste sti stm sto stp sts stt te- tee tei tem teo tep tes tet tie tii tim tio tip tis tit tme tmi tmm tmo tmp tms tmt to- toe toi tom too top tos tot tpe tpi tpm tpo tpp tps tpt tse tsi tsm tso tsp tss tst tte tti ttm tto ttp tts ttt