question: Was M2 influenced by M3 and influenced by a French writer of M1 's sequel
query: SELECT count(*) WHERE {
  ?x0 ns:film.writer.film ?x1 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c .
  ?x1 ns:film.film.prequel M1 .
  M2 ns:influence.influence_node.influenced_by ?x0 .
  M2 ns:influence.influence_node.influenced_by M3
  }