question: Which person was a male Italian British producer of M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.producer.film|ns:film.production_company.films M3 .
  ?x0 ns:people.person.gender ns:m.05zppz .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  ?x0 ns:people.person.nationality ns:m.07ssc
  }