Were M1 , M2 , M3 , M4 , and M5 written by M0 's actor 's employer
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 ns:film.actor.film/ns:film.performance.character M0 .
M1 ns:film.film.written_by ?x0 .
M2 ns:film.film.written_by ?x0 .
M3 ns:film.film.written_by ?x0 .
M4 ns:film.film.written_by ?x0 .
M5 ns:film.film.written_by ?x0
}