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