question: Did a film editor that M1 and M2 were directed by influence a film editor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.director.film M1 .
  ?x0 ns:film.director.film M2 .
  ?x0 ns:influence.influence_node.influenced ?x1 .
  ?x1 a ns:film.editor
  }