Was M1 written by M2 and M3 , written by M4 , written by M5 , and executive produced by a person
SELECT count(*) WHERE {
?x0 a ns:people.person .
M1 ns:film.film.executive_produced_by ?x0 .
M1 ns:film.film.written_by M2 .
M1 ns:film.film.written_by M3 .
M1 ns:film.film.written_by M4 .
M1 ns:film.film.written_by M5
}