question: Did M4 marry a film producer that M1 , M2 , and M3 influenced and influence M5 , M6 , and M7
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:influence.influence_node.influenced_by M1 .
  ?x0 ns:influence.influence_node.influenced_by M2 .
  ?x0 ns:influence.influence_node.influenced_by M3 .
  FILTER ( M4 != ?x0 ) .
  M4 ns:influence.influence_node.influenced M5 .
  M4 ns:influence.influence_node.influenced M6 .
  M4 ns:influence.influence_node.influenced M7 .
  M4 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x0
  }