Did a film producer 's employee influence M0 's star
SELECT count(*) WHERE {
?x0 ns:influence.influence_node.influenced ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x2 .
?x1 ns:film.actor.film/ns:film.performance.film M0 .
?x2 a ns:film.producer
}