-er -ey eee eem eeo eep eer eey eie eii eim eio eip eir em- eme emi emm emo emp emr eo- eoe eoi eom eoo eop eor ep- epe epi epm epo epp epr ere eri erm ero erp err ery eye eym eyo eyp eyr ie- iee iei iem iep ier iey iie iii iim iio iip iir im- ime imi imm imo imp imy io- ioe ioi iom ioo iop ior ipe ipi ipm ipo ipp ipr ipy ir- ire iri irm iro irp irr iry iye iym iyo iyr iyy m-o m-r mee mei mem meo mep mer mey mi- mie mii mim mio mip mir miy mme mmi mmm mmo mmp mmr moe moi mom moo mop mor moy mpe mpi mpm mpo mpp mpr mre mri mrm mro mrp mrr mry my- mye mym myo myr o-i oee oei oem oeo oep oer oey oie oii oim oio oip oir om- ome omi omm omo omp omr omy oo- ooi oom ooo oop oor op- ope opi opm opo opp opr opy or- ore ori orm oro orp orr ory oye oyi oyo p-p pee pei pem peo pep per pey pie pii pim pio pip pir pme pmi pmm pmo pmp pmr poe poi pom poo pop por poy ppe ppi ppm ppo ppp ppr pre pri prm pro prp prr pry py- pye pym pyo pyr re- ree rei rem reo rep rer rey rie rii rim rio rip rir riy rme rmi rmm rmo rmp rmr roe roi rom roo rop ror roy rpe rpi rpm rpo rpp rpr rri rrm rrp rrr ry- rye rym ryo ryr ryy yee yei yem yeo yep yer yey yie yii yim yio yip yir yme ymi ymm ymo yoe yoi yom yoo yop yor yoy ypo yre yro yrp yye yyy