question: Who influenced M1 and M2 , was influenced by a employee and founder of M4 , and was influenced by M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:influence.influence_node.influenced M1 .
  ?x0 ns:influence.influence_node.influenced M2 .
  ?x0 ns:influence.influence_node.influenced_by ?x1 .
  ?x0 ns:influence.influence_node.influenced_by M3 .
  ?x1 ns:organization.organization_founder.organizations_founded M4 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M4
  }