Were M2 and M4 edited by M3 and edited by a male person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.gender ns:m.05zppz .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.edited_by M3 .
M4 ns:film.film.edited_by ?x0 .
M4 ns:film.film.edited_by M3
}