Who was influenced by M3 , was influenced by a employee of M4 , and influenced M1 and M2
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:people.person.employment_history/ns:business.employment_tenure.company M4
}