Were M4 , M5 , and M6 written by a British Canadian male parent of M3
SELECT count(*) WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M3 .
?x0 ns:people.person.gender ns:m.05zppz .
?x0 ns:people.person.nationality ns:m.07ssc .
?x0 ns:people.person.nationality ns:m.0d060g .
M4 ns:film.film.written_by ?x0 .
M5 ns:film.film.written_by ?x0 .
M6 ns:film.film.written_by ?x0
}