question: Who influenced a character and was influenced by M2 's star
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:influence.influence_node.influenced ?x1 .
  ?x0 ns:influence.influence_node.influenced_by ?x2 .
  ?x1 a ns:fictional_universe.fictional_character .
  ?x2 ns:film.actor.film/ns:film.performance.film M2
  }