Was a American writer of M0 , M1 , and M2 a founder of M3
SELECT count(*) WHERE {
?x0 ns:film.writer.film M0 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:organization.organization_founder.organizations_founded M3 .
?x0 ns:people.person.nationality ns:m.09c7w0
}