question: Was M1 produced by a cinematographer , executive produced by M2 , and executive produced by M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.cinematographer .
  M1 ns:film.film.executive_produced_by M2 .
  M1 ns:film.film.executive_produced_by M3 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }