-er eee eef eem eep eer ees ef- efe eff efi efm efp efr efs eie eif eii eim eip eir eis em- eme emf emi emm emp emr ems ep- epe epf epi epm epp epr eps ere erf eri erm erp err ers es- ese esf esi esm esp esr ess fee fef fei fem fep fer fes ffe fff ffi ffm ffp ffr ffs fie fif fii fim fip fir fis fme fmf fmi fmm fmp fmr fms fpe fpi fpm fpp fpr fps fre frf fri frm frp frr frs fse fsf fsi fsm fsp fsr fss i-f ie- iee ief iei iem iep ier ies ife iff ifi ifm ifp ifr ifs iie iif iii iim iip iir iis im- ime imf imi imm imp ims ipe ipf ipi ipm ipp ipr ips ir- ire irf iri irm irp irr irs is- ise isf isi ism isp isr iss m-f m-r mee mef mei mem mep mer mes mfe mff mfi mfm mfp mfr mfs mi- mie mif mii mim mip mir mis mme mmf mmi mmm mmp mmr mms mpe mpf mpi mpm mpp mpr mps mre mrf mri mrm mrp mrr mrs mse msf msi msm msp msr mss p-p pee pef pei pem pep per pes pfe pff pfi pfm pfp pfr pfs pie pif pii pim pip pir pis pme pmf pmi pmm pmp pmr pms ppe ppf ppi ppm ppp ppr pps pre prf pri prm prp prr prs ps- pse psf psi psm psp psr pss re- ree ref rei rem rep rer res rfe rff rfi rfm rfp rfr rfs rie rif rii rim rip rir ris rme rmf rmi rmm rmp rmr rms rpe rpf rpi rpm rpp rpr rps rrf rri rrm rrp rrr rrs rse rsf rsi rsm rsp rsr rss se- see sef sei sem sep ser ses sfe sff sfi sfm sfp sfr sfs sie sif sii sim sip sir sis sme smf smi smm smp smr sms spe spf spi spm spp spr sps sr- sre srf sri srm srp srr srs ss- sse ssf ssi ssm ssp ssr sss

-ism eeee eees eefe eems eeps eers eese eesi efes effi effs efmi efsi efsm eiei eier eies eifs eime eimi eims eipr eire eirs eise eiss emer emes emii emim emir emis emme emmi emms empe empi emps emre emrs emse epee eper epes epi- epie epip epis epms eppp epps eprp eprs epsf epsi epsp epss erei erem erer eres erfs erie erim eris erme erms erpe erps erre errs erse ersi esee esem eser eses esfp esfs esie esis esme esmr espe espi espp esps esri esse essi essp feem feer fees fefe feff fefi feie feir feis feme femi femm fems feps fere ferm ferr fers fese fess ffee ffff ffii ffps ffrr ffss fief fier fies fife fiff fifi fifm fiii fime fimr fipp fips fire firm firs fise fisi fism fiss fmep fmri fmsr fmss fprf free frei frem frep fres frie frim frip fris frps frsm fsfi fsim fspf fssf fssp ieie ieme iems iere ieri iers iesi iesr ifer ifes ifim ifis ifps ifrf ifri ifsp iies iiie iiii iiis iipf iipm iirs iisi iism iisp iisr imep imer imes imfi imir imme immi imms impf impi impr imps imre imri imrr imsf imsi imsp imsr imss iper ipes ipie ipmi ipmp ipms ippf ippr ipri ipse ipsi ipsp ipss iree irem irer ires irfe irfm iri- irie irip iris irms irpe irps irre irri irrs irse irsf irsp isee isep iser ises isfp isie isim isis isme ismi isms ispe ispf ispr isps isri isrp isse issf issi issp issr isss meef meem meep meer mees mefe meff mefi meir meis meme memr mems mepe meps mer- mere merf meri merm merp mers mes- mese mesi mesr mess mfps mfri mfrp mfrs miee miem miep mier mies miff mifi miii miis mim- mime mimi mimp mims mipi mipr mips mire miri mirr mirs mis- mise misi misr miss mmes mmff mmii mmis mmmm mmms mmpi mmpr mmrf mmrp mmse mpes mpfs mpie mpir mppe mppf mppp mpps mprf mpri mprp mree mres mris mrps mrse mrsi msee msem msff msfs msmm msms mspe mspi mspp msrp mssf mssi mssm mssp mssr peep peer pees peff pefs peip peir peis pepe pepi peps per- pere perf peri perm perp perr pers pese pesi pess pfff pffr pfis pfps piem piep pier pies piff pifs piip pime pimi pimp pims pipe pipi pipp pips pire piri pirr pirs pise pisi piss pmip pmmp pmpm pmrs pmse pmsf pper ppie ppif ppms pppp ppps pprf pprm ppsf ppss pre- pree pref prem prep pres prfs pri- prie prif prii prim pris prps prri prrm prrs prse prsi prss psei psfs psim psip psis pspi pspp pspr psps psrp psse pssm reef reem reep rees refe reff refi refr refs reif reii reim reir reis reme remi remp rems repe repi repp repr reps rere reri rers rese resi resp ress rfef rfem rief riem riep rier ries rife riff rifs riif riis rime rimi rimm rims ripe ripi ripp ripr rips rire riri rirs rise risi rism risp riss rmif rmrp rmsp rpii rpms rpps rrif rrmp rrrr rrsp rsee rsis rsme rsps rsre s-ii se-e se-f se-i se-s seef seem seep seer sees seff sefi seie seif seii seim seip seir seis seme semi semp sems sepe sepi sepp sepr seps sere serf seri serm serp serr sers sese sesi sess sfer sfmm sfss sief sier sies sife siff sifr siim sime simi simm simp sims sipe sipi sipp sips sire sirf siri sirp sirr sirs sise sisi siss smee smei smep smie smif smis smps smrf smsp smss spee spef sper spes spfs spie spim spip spir spis spme spmi spms sppf spps spri sprm sprs spse spsp spss srem sres srfi srim sris srps srsp ssee ssem ssep sses ssfp ssis sspe sspf