Who was influenced by M1 , influenced by M2 's editor , and influenced by a editor of M3 and M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x0 ns:influence.influence_node.influenced_by ?x2 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x1 ns:film.editor.film M2 .
?x2 ns:film.editor.film M3 .
?x2 ns:film.editor.film M4
}