Was M0 M2 's prequel 's female American writer 's country of nationality
SELECT count(*) WHERE {
?x0 ns:film.writer.film ?x1 .
?x0 ns:people.person.gender ns:m.02zsn .
?x0 ns:people.person.nationality ns:m.09c7w0 .
?x1 ns:film.film.sequel M2 .
M0 ^ns:people.person.nationality ?x0
}