Did M1 and M6 edit a film , produce M4 and M5 , and executive produce M2 and M3
SELECT count(*) WHERE {
?x0 a ns:film.film .
M1 ns:film.editor.film ?x0 .
M1 ns:film.producer.films_executive_produced M2 .
M1 ns:film.producer.films_executive_produced M3 .
M1 ns:film.producer.film|ns:film.production_company.films M4 .
M1 ns:film.producer.film|ns:film.production_company.films M5 .
M6 ns:film.editor.film ?x0 .
M6 ns:film.producer.films_executive_produced M2 .
M6 ns:film.producer.films_executive_produced M3 .
M6 ns:film.producer.film|ns:film.production_company.films M4 .
M6 ns:film.producer.film|ns:film.production_company.films M5
}