Was M1 written by a child of M0 's cinematographer and written by M2
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 ns:film.cinematographer.film M0 .
M1 ns:film.film.written_by ?x0 .
M1 ns:film.film.written_by M2
}