Was a director , cinematographer , and writer of M0 and M1 a editor of M2
SELECT count(*) WHERE {
?x0 ns:film.cinematographer.film M0 .
?x0 ns:film.cinematographer.film M1 .
?x0 ns:film.director.film M0 .
?x0 ns:film.director.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film M1
}