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