question: Was a actor that M2 was influenced by , M3 was influenced by , and M4 influenced M0
query: SELECT count(*) WHERE {
  M0 a ns:film.actor .
  M0 ns:influence.influence_node.influenced M2 .
  M0 ns:influence.influence_node.influenced M3 .
  M0 ns:influence.influence_node.influenced_by M4
  }