What child of M0 did a production company acquire
SELECT DISTINCT ?x0 WHERE {
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x1 .
?x0 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent M0 .
?x1 a ns:film.production_company
}