Did M1 employ M2 , employ M3 , and employ M0 's sequel 's cinematographer
SELECT count(*) WHERE {
?x0 ns:film.cinematographer.film ?x1 .
?x1 ns:film.film.prequel M0 .
M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M1 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
M1 ns:business.employer.employees/ns:business.employment_tenure.person M3
}