question: Was M1 produced by M2 and M3 and executive produced by a sibling of a employee and founder of M0
query: SELECT count(*) WHERE {
  ?x0 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 ?x1 .
  ?x1 ns:organization.organization_founder.organizations_founded M0 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  FILTER ( ?x0 != ?x1 ) .
  M1 ns:film.film.executive_produced_by ?x0 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies M2 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies M3
  }