Were M1 and M6 written by M2 , M3 , M4 , and M5 and written by a film producer 's child
SELECT count(*) WHERE {
?x0 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x1 .
?x1 a ns:film.producer .
M1 ns:film.film.written_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 .
M6 ns:film.film.written_by ?x0 .
M6 ns:film.film.written_by M2 .
M6 ns:film.film.written_by M3 .
M6 ns:film.film.written_by M4 .
M6 ns:film.film.written_by M5
}