question: Was a actor 's employer acquired by M1 's producer
query: SELECT count(*) WHERE {
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x2 .
  ?x1 a ns:film.actor .
  ?x2 ns:film.producer.film|ns:film.production_company.films M1
  }