Did M1 write a film , executive produce a film , and edit M2 and M3
SELECT count(*) WHERE {
?x0 a ns:film.film .
?x1 a ns:film.film .
M1 ns:film.editor.film M2 .
M1 ns:film.editor.film M3 .
M1 ns:film.producer.films_executive_produced ?x1 .
M1 ns:film.writer.film ?x0
}