Was M1 edited by M3 , written by a parent of M0 , and written by M2
SELECT count(*) WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M0 .
M1 ns:film.film.edited_by M3 .
M1 ns:film.film.written_by ?x0 .
M1 ns:film.film.written_by M2
}