question: Did a screenwriter that M1 and M2 were written by and starred found M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:film.actor.film/ns:film.performance.film M1 .
  ?x0 ns:film.actor.film/ns:film.performance.film M2 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:organization.organization_founder.organizations_founded M3
  }