Were M2 and M4 executive produced by M0 's editor , written by a screenwriter , and edited by M3
SELECT count(*) WHERE {
?x0 ns:film.editor.film M0 .
?x1 a ns:film.writer .
M2 ns:film.film.edited_by M3 .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.written_by ?x1 .
M4 ns:film.film.edited_by M3 .
M4 ns:film.film.executive_produced_by ?x0 .
M4 ns:film.film.written_by ?x1
}