Was M3 influenced by a film editor and influenced by a British male film editor
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x1 a ns:film.editor .
?x1 ns:people.person.gender ns:m.05zppz .
?x1 ns:people.person.nationality ns:m.07ssc .
M3 ns:influence.influence_node.influenced_by ?x0 .
M3 ns:influence.influence_node.influenced_by ?x1
}