Did M1 and M2 write , direct , and edit a film 's sequel
SELECT count(*) WHERE {
?x0 ns:film.film.prequel ?x1 .
?x1 a ns:film.film .
M1 ns:film.director.film ?x0 .
M1 ns:film.editor.film ?x0 .
M1 ns:film.writer.film ?x0 .
M2 ns:film.director.film ?x0 .
M2 ns:film.editor.film ?x0 .
M2 ns:film.writer.film ?x0
}