Was M0 a film executive produced and written by M2 and M3
SELECT count(*) WHERE {
M0 a ns:film.film .
M0 ns:film.film.executive_produced_by M2 .
M0 ns:film.film.executive_produced_by M3 .
M0 ns:film.film.written_by M2 .
M0 ns:film.film.written_by M3
}