Was M3 executive produced by a film producer and written by a founder of M1 and M2
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x1 ns:organization.organization_founder.organizations_founded M1 .
?x1 ns:organization.organization_founder.organizations_founded M2 .
M3 ns:film.film.executive_produced_by ?x0 .
M3 ns:film.film.written_by ?x1
}