What film editor was a Canadian screenwriter that founded M2 and M3
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.editor .
?x0 a ns:film.writer .
?x0 ns:organization.organization_founder.organizations_founded M2 .
?x0 ns:organization.organization_founder.organizations_founded M3 .
?x0 ns:people.person.nationality ns:m.0d060g
}