MONOSPERM

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ems ens eon ern ers mem men mom mon moo mop mor mos nom noo nor nos oes oms one ono ons ope ops ore ors ose pen per pes pom poo pro rem rep res roe rom sen ser som son sop

eons epos erns eros memo mems meno mome moms mono mons moon moor moos mope mops more morn mors noes nome noms nope norm nose omen omer ones onos oops open opes ores pens peon perm peso poem pome pomo poms pone pons poon poor poos pore porn pose prom pros rems repo reps roes romp roms room rope rose some sone soon sore sorn