question: Did M2 influence M3 , influence M4 , M5 , M6 , and M7 , and influence a Mexican film editor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:people.person.nationality ns:m.0b90_r .
  M2 ns:influence.influence_node.influenced ?x0 .
  M2 ns:influence.influence_node.influenced M3 .
  M2 ns:influence.influence_node.influenced M4 .
  M2 ns:influence.influence_node.influenced M5 .
  M2 ns:influence.influence_node.influenced M6 .
  M2 ns:influence.influence_node.influenced M7
  }