Who influenced M1 's employee 's sibling and influenced M2 's sequel 's writer
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:influence.influence_node.influenced ?x1 .
?x0 ns:influence.influence_node.influenced ?x2 .
?x1 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 ?x3 .
?x2 ns:film.writer.film ?x4 .
?x3 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x4 ns:film.film.prequel M2 .
FILTER ( ?x1 != ?x3 )
}