Were M5 and M6 executive produced by a Swedish star of M1 , M2 , M3 , and M4
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:film.actor.film/ns:film.performance.film M4 .
?x0 ns:people.person.nationality ns:m.0d0vqn .
M5 ns:film.film.executive_produced_by ?x0 .
M6 ns:film.film.executive_produced_by ?x0
}