Who was a screenwriter whose sibling was influenced by M2 , M3 , and M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.writer .
?x0 a ns:people.person .
?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x1 .
?x1 ns:influence.influence_node.influenced_by M2 .
?x1 ns:influence.influence_node.influenced_by M3 .
?x1 ns:influence.influence_node.influenced_by M4 .
FILTER ( ?x0 != ?x1 )
}