Which Swedish person that M1 , M2 , and M3 were written by was M4 's employee
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:film.writer.film M3 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M4 .
?x0 ns:people.person.nationality ns:m.0d0vqn
}