Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE HOST (Nationality VARCHAR, Age INTEGER)
### Question:
Show the nations that have both hosts older than 45 and hosts younger than 35.
### Answer:
SELECT Nationality FROM HOST WHERE Age > 45 INTERSECT SELECT Nationality FROM HOST WHERE Age < 35