question: Was M3 executive produced by a male person 's sibling , directed by M4 , and executive produced by M0 's employee
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x1 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x2 .
  ?x2 a ns:people.person .
  ?x2 ns:people.person.gender ns:m.05zppz .
  FILTER ( ?x1 != ?x2 ) .
  M3 ns:film.film.directed_by M4 .
  M3 ns:film.film.executive_produced_by ?x0 .
  M3 ns:film.film.executive_produced_by ?x1
  }