Was M3 executive produced by a cinematographer that M1 and M2 starred
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
M3 ns:film.film.executive_produced_by ?x0
}