Was a cinematographer influenced by M1 and M2 and influenced by a British screenwriter
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x1 a ns:film.writer .
?x1 ns:people.person.nationality ns:m.07ssc
}