Did a French cinematographer that M2 and M3 were written by and produced by edit M1
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:film.editor.film M1 .
?x0 ns:film.producer.film|ns:film.production_company.films M2 .
?x0 ns:film.producer.film|ns:film.production_company.films M3 .
?x0 ns:film.writer.film M2 .
?x0 ns:film.writer.film M3 .
?x0 ns:people.person.nationality ns:m.0f8l9c
}