Was M1 a person that influenced M0 's sequel 's star and was influenced by M3 and M4
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x1 ns:film.film.prequel M0 .
M1 a ns:people.person .
M1 ns:influence.influence_node.influenced ?x0 .
M1 ns:influence.influence_node.influenced_by M3 .
M1 ns:influence.influence_node.influenced_by M4
}