Did a film editor that M1 and M2 were directed by influence a film editor
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:influence.influence_node.influenced ?x1 .
?x1 a ns:film.editor
}