question: What did a character executive produce , M1 and M2 write , and M0 executive produce
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.executive_produced_by M0 .
  ?x0 ns:film.film.written_by M1 .
  ?x0 ns:film.film.written_by M2 .
  ?x1 a ns:fictional_universe.fictional_character
  }