Was M2 directed by M3 , M4 , M5 , and M6 and executive produced by a British person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.nationality ns:m.07ssc .
M2 ns:film.film.directed_by M3 .
M2 ns:film.film.directed_by M4 .
M2 ns:film.film.directed_by M5 .
M2 ns:film.film.directed_by M6 .
M2 ns:film.film.executive_produced_by ?x0
}