Was M3 founded by M4 and M5 and founded by a British person that M1 was executive produced by
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:people.person.nationality ns:m.07ssc .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders M4 .
M3 ns:organization.organization.founders M5
}