Did M2 , M3 , M4 , and M5 influence a parent of M0 's Mexican writer
SELECT count(*) WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
?x1 ns:film.writer.film M0 .
?x1 ns:people.person.nationality ns:m.0b90_r .
M2 ns:influence.influence_node.influenced ?x0 .
M3 ns:influence.influence_node.influenced ?x0 .
M4 ns:influence.influence_node.influenced ?x0 .
M5 ns:influence.influence_node.influenced ?x0
}