Did M3 employ a Chinese executive producer of M0 and M1
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:people.person.nationality ns:m.0d05w3 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}