question: Was a production company 's child founded by M0 , founded by M1 and M2 , and founded by M4 's sibling
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization.founders ?x1 .
  ?x0 ns:organization.organization.founders M0 .
  ?x0 ns:organization.organization.founders M1 .
  ?x0 ns:organization.organization.founders M2 .
  ?x0 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x2 .
  ?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 M4 .
  ?x2 a ns:film.production_company .
  FILTER ( ?x1 != M4 )
  }