question: Was M1 produced by M2 , produced by M3 , executive produced by a character , and produced by M4
query: SELECT count(*) WHERE {
  ?x0 a ns:fictional_universe.fictional_character .
  M1 ns:film.film.executive_produced_by ?x0 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies M2 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies M3 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies M4
  }