question: Who was influenced by a British employee of M3 and M4 , influenced by a screenwriter , and influenced by M1
query: 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 a ns:film.writer .
  ?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
  ?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M4 .
  ?x2 ns:people.person.nationality ns:m.07ssc
  }