Was M2 influenced by M3 , influenced by M1 's German star , and influenced by M4
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:people.person.nationality ns:m.0345h .
M2 ns:influence.influence_node.influenced_by ?x0 .
M2 ns:influence.influence_node.influenced_by M3 .
M2 ns:influence.influence_node.influenced_by M4
}