Was M0 a film executive produced by M2 , executive produced by M3 , and executive produced by M4
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.executive_produced_by M4
}