question: Was a actor that M2 was influenced by M0 's sibling
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:influence.influence_node.influenced M2 .
  ?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 M0 .
  FILTER ( ?x0 != M0 )
  }