Did a company employ M1 's producer , cinematographer , and writer
SELECT count(*) WHERE {
?x0 a ns:business.employer .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 ns:film.cinematographer.film M1 .
?x1 ns:film.producer.film|ns:film.production_company.films M1 .
?x1 ns:film.writer.film M1
}