Was M4 a Canadian film producer whose parent executive produced M0 , M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:film.producer.films_executive_produced M3 .
M4 a ns:film.producer .
M4 ns:people.person.nationality ns:m.0d060g .
M4 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x0
}