Were M2 and M5 written by M3 , written by M4 , and written by a French person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.nationality ns:m.0f8l9c .
M2 ns:film.film.written_by ?x0 .
M2 ns:film.film.written_by M3 .
M2 ns:film.film.written_by M4 .
M5 ns:film.film.written_by ?x0 .
M5 ns:film.film.written_by M3 .
M5 ns:film.film.written_by M4
}