Was M3 a production company whose founder and employee executive produced M0 , M1 , and M2
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:film.producer.films_executive_produced M2 .
M3 a ns:film.production_company .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M3 ns:organization.organization.founders ?x0
}