Was M3 a company whose employee directed and wrote M0 , M1 , and M2
SELECT count(*) WHERE {
?x0 ns:film.director.film M0 .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
M3 a ns:business.employer .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}