Did M0 's American female writer influence M1 and M2
SELECT count(*) WHERE {
?x0 ns:film.writer.film M0 .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced M2 .
?x0 ns:people.person.gender ns:m.02zsn .
?x0 ns:people.person.nationality ns:m.09c7w0
}