Were M2 and M4 produced by a production company that employed and was founded by M1 and directed by M3
SELECT count(*) WHERE {
?x0 a ns:film.production_company .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M1 .
?x0 ns:organization.organization.founders M1 .
M2 ns:film.film.directed_by M3 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M4 ns:film.film.directed_by M3 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}