Did M3 influence M4 and influence a American cinematographer of M1 and M2
SELECT count(*) WHERE {
?x0 ns:film.cinematographer.film M1 .
?x0 ns:film.cinematographer.film M2 .
?x0 ns:people.person.nationality ns:m.09c7w0 .
M3 ns:influence.influence_node.influenced ?x0 .
M3 ns:influence.influence_node.influenced M4
}