Was a film editor that M1 and M2 were edited by , were directed by , and were written by a film director
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2
}