Were M3 and M5 executive produced by M4 and produced by a British person that wrote M1
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:film.writer.film M1 .
?x0 ns:people.person.nationality ns:m.07ssc .
M3 ns:film.film.executive_produced_by M4 .
M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M5 ns:film.film.executive_produced_by M4 .
M5 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}