Were M2 , M3 , and M4 influenced by a German director of a sequel of M1
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:people.person.nationality ns:m.0345h .
?x1 ns:film.film.prequel M1 .
M2 ns:influence.influence_node.influenced_by ?x0 .
M3 ns:influence.influence_node.influenced_by ?x0 .
M4 ns:influence.influence_node.influenced_by ?x0
}