Was M0 executive produced by M1 and M2 , written by M3 and M4 , and written by M5 and M6
SELECT count(*) WHERE {
M0 ns:film.film.executive_produced_by M1 .
M0 ns:film.film.executive_produced_by M2 .
M0 ns:film.film.written_by M3 .
M0 ns:film.film.written_by M4 .
M0 ns:film.film.written_by M5 .
M0 ns:film.film.written_by M6
}