question: Was a editor of M2 , M3 , and M4 a female person
query: SELECT count(*) WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:film.editor.film M3 .
  ?x0 ns:film.editor.film M4 .
  ?x0 ns:people.person.gender ns:m.02zsn
  }