question: Were M1 , M2 , and M3 acquired by a actor 's employer 's child
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x1 .
  ?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
  ?x2 a ns:film.actor .
  M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
  M2 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
  M3 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0
  }