Were M2 , M5 , and M6 executive produced by M3 and M4 and directed by M1 's American director
SELECT count(*) WHERE {
?x0 ns:film.director.film M1 .
?x0 ns:people.person.nationality ns:m.09c7w0 .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.executive_produced_by M4 .
M5 ns:film.film.directed_by ?x0 .
M5 ns:film.film.executive_produced_by M3 .
M5 ns:film.film.executive_produced_by M4 .
M6 ns:film.film.directed_by ?x0 .
M6 ns:film.film.executive_produced_by M3 .
M6 ns:film.film.executive_produced_by M4
}