question: Was M0 a Canadian film producer that M4 , M5 , and M6 influenced and M2 and M3 were influenced by
query: SELECT count(*) WHERE {
  M0 a ns:film.producer .
  M0 ns:influence.influence_node.influenced M2 .
  M0 ns:influence.influence_node.influenced M3 .
  M0 ns:influence.influence_node.influenced_by M4 .
  M0 ns:influence.influence_node.influenced_by M5 .
  M0 ns:influence.influence_node.influenced_by M6 .
  M0 ns:people.person.nationality ns:m.0d060g
  }