Did a film producer write M1 , M2 , M3 , and M4 , direct M5 and M6 , and direct M7
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:film.director.film M5 .
?x0 ns:film.director.film M6 .
?x0 ns:film.director.film M7 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:film.writer.film M3 .
?x0 ns:film.writer.film M4
}