What actor influenced M1 and M2 and was influenced by M4 's Canadian producer
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.actor .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced M2 .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x1 ns:film.producer.film|ns:film.production_company.films M4 .
?x1 ns:people.person.nationality ns:m.0d060g
}