question: Did a sibling of a person 's American actor 's parent found M0
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded M0 .
  ?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:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x2 .
  ?x2 ns:film.actor.film/ns:film.performance.character ?x3 .
  ?x2 ns:people.person.nationality ns:m.09c7w0 .
  ?x3 a ns:people.person .
  FILTER ( ?x0 != ?x1 )
  }