Was a cinematographer whose country of nationality employed M2 and M3 and employed M4 M1 's art director
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:film.film_art_director.films_art_directed M1 .
?x0 ns:people.person.nationality ?x1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person M4
}