Were M2 and M3 directed by a character and edited by a person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x1 a ns:fictional_universe.fictional_character .
M2 ns:film.film.directed_by ?x1 .
M2 ns:film.film.edited_by ?x0 .
M3 ns:film.film.directed_by ?x1 .
M3 ns:film.film.edited_by ?x0
}