-er eee eef eem eep eer ees eex ef- efe eff efi efm efp efr efs efx eie eif eii eim eip eir eis eix em- eme emf emi emm emp emr ems emx ep- epe epf epi epm epp epr eps epx ere erf eri erm erp err ers es- ese esf esi esm esp esr ess esx ex- exe exi exp exr exs exx fee fef fei fem fep fer fes fex ffe fff ffi ffm ffp ffr ffs ffx fie fif fii fim fip fir fis fix fme fmf fmi fmm fmp fmr fms fmx fpe fpi fpm fpp fpr fps fpx fre frf fri frm frp frr frs fse fsf fsi fsm fsp fsr fss fsx fxe fxi fxm fxp fxr fxs fxx i-f ie- iee ief iei iem iep ier ies iex ife iff ifi ifm ifp ifr ifs ifx iie iif iii iim iip iir iis iix im- ime imf imi imm imp ims imx ipe ipf ipi ipm ipp ipr ips ipx ir- ire irf iri irm irp irr irs irx is- ise isf isi ism isp isr iss ixe ixi m-f m-r mee mef mei mem mep mer mes mex mfe mff mfi mfm mfp mfr mfs mi- mie mif mii mim mip mir mis mix mme mmf mmi mmm mmp mmr mms mmx mpe mpf mpi mpm mpp mpr mps mpx mre mrf mri mrm mrp mrr mrs mrx mse msf msi msm msp msr mss msx mxi mxp mxr mxs p-p pee pef pei pem pep per pes pex pfe pff pfi pfm pfp pfr pfs pfx pie pif pii pim pip pir pis pix pme pmf pmi pmm pmp pmr pms pmx ppe ppf ppi ppm ppp ppr pps ppx pre prf pri prm prp prr prs prx ps- pse psf psi psm psp psr pss psx pxe pxm pxr pxs re- ree ref rei rem rep rer res rex rfe rff rfi rfm rfp rfr rfs rie rif rii rim rip rir ris rix rme rmf rmi rmm rmp rmr rms rmx rpe rpf rpi rpm rpp rpr rps rpx rrf rri rrm rrp rrr rrs rse rsf rsi rsm rsp rsr rss rsx rxp rxr rxs se- see sef sei sem sep ser ses sex sfe sff sfi sfm sfp sfr sfs sfx sie sif sii sim sip sir sis six sme smf smi smm smp smr sms smx spe spf spi spm spp spr sps spx sr- sre srf sri srm srp srr srs srx ss- sse ssf ssi ssm ssp ssr sss ssx sxi sxm sxs xee xem xep xer xes xex xfe xfm xfs xfx xie xii xis xix xmf xmi xmm xmp xmr xms xmx xpe xpf xpm xpp xps xrf xrx xsi xsm xsp xss xxi xxp xxx

-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 emex emii emim emir emis emix emme emmi emms empe empi emps emre emrs emse epee eper epes epi- epie epip epis epix epms eppp epps eprp eprs epsf epsi epsp epss epsx epxp er-x erei erem erer eres erfs erfx 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 exer exes exif exim exis exmr expm expr exrx 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 fixe fixx fmep fmri fmsr fmss fmsx fprf free frei frem frep fres frex frie frim frip fris frps frsm fsfi fsim fsix fspf fssf fssp fxsp ieie ieme iems iere ieri iers iesi iesr ifer ifes ifex ifim ifis ifps ifrf ifri ifsp iies iiie iiii iiis iipf iipm iirs iisi iism iisp iisr imep imer imes imfi imir imix imme immi imms impf impi impr imps impx imre imri imrr imsf imsi imsp imsr imss imsx iper ipes ipex ipie ipix ipmi ipmp ipms ippf ippr ipri ipse ipsi ipsp ipss ipxe iree irem irer ires irex irfe irfm iri- irie irip iris irix 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 ixxi meef meem meep meer mees mefe meff mefi meir meis meme memr mems memx mepe meps mer- mere merf meri merm merp mers mes- mese mesi mesr mess mexx 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 mixe mixi mixx mmes mmff mmii mmis mmix mmmm mmms mmpi mmpr mmrf mmrp mmse mmxi mmxx mpes mpfs mpie mpir mppe mppf mppp mpps mprf mpri mprp mree mres mris mrps mrse mrsi msee msem msex msff msfs msmm msms mspe mspi mspp msrp mssf mssi mssm mssp mssr mxii mxim mxpx mxxi 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 pixx pmip pmmp pmpm pmrs pmse pmsf pper ppie ppif ppms pppp ppps pprf pprm ppsf ppss pre- pree pref prem prep pres prex prfs pri- prie prif prii prim pris prix prps prri prrm prrs prse prsi prss psei psfs psim psip psis pspi pspp pspr psps psrp psse pssm pxes 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