Was M2 written by M3 , M4 , M5 , M6 , M7 , and M8 and executive produced by a Canadian film producer
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:people.person.nationality ns:m.0d060g .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.written_by M3 .
M2 ns:film.film.written_by M4 .
M2 ns:film.film.written_by M5 .
M2 ns:film.film.written_by M6 .
M2 ns:film.film.written_by M7 .
M2 ns:film.film.written_by M8
}