Was a character a director and writer of M1 and M2
SELECT count(*) WHERE {
?x0 a ns:fictional_universe.fictional_character .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2
}