Was M0 a person that edited and produced M2 and M3
SELECT count(*) WHERE {
M0 a ns:people.person .
M0 ns:film.editor.film M2 .
M0 ns:film.editor.film M3 .
M0 ns:film.producer.film|ns:film.production_company.films M2 .
M0 ns:film.producer.film|ns:film.production_company.films M3
}