Did M1 edit M2 and M3 , edit M0 's sequel , and executive produce M4
SELECT count(*) WHERE {
?x0 ns:film.film.prequel M0 .
M1 ns:film.editor.film ?x0 .
M1 ns:film.editor.film M2 .
M1 ns:film.editor.film M3 .
M1 ns:film.producer.films_executive_produced M4
}