Who influenced M1 , influenced M2 and M3 , influenced a person , and was influenced by M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:influence.influence_node.influenced ?x1 .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced M2 .
?x0 ns:influence.influence_node.influenced M3 .
?x0 ns:influence.influence_node.influenced_by M4 .
?x1 a ns:people.person
}