Which person that M1 was influenced by was a British art director of M3 and M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.film_art_director.films_art_directed M3 .
?x0 ns:film.film_art_director.films_art_directed M4 .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:people.person.nationality ns:m.07ssc
}