Did M2 direct M1 's prequel , edit M3 , edit M4 , and edit a film
SELECT count(*) WHERE {
?x0 a ns:film.film .
?x1 ns:film.film.sequel M1 .
M2 ns:film.director.film ?x1 .
M2 ns:film.editor.film ?x0 .
M2 ns:film.editor.film M3 .
M2 ns:film.editor.film M4
}