question: Was M1 a production company whose employee and founder executive produced M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.films_executive_produced M0 .
  M1 a ns:film.production_company .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M1 ns:organization.organization.founders ?x0
  }