Was M4 edited by and produced by a person that executive produced M2 and M3 and edited M1
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:film.editor.film M1 .
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:film.producer.films_executive_produced M3 .
M4 ns:film.film.edited_by ?x0 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}