question: Was M1 produced and executive produced by M0 's producer
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films M0 .
  M1 ns:film.film.executive_produced_by ?x0 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }