Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE HOST ( Nationality VARCHAR, Age INTEGER )

### Question ###
Show the nations that have both hosts older than 45 and hosts younger than 35.

### Accurate SQL ###

SELECT Nationality FROM HOST WHERE Age > 45 INTERSECT SELECT Nationality FROM HOST WHERE Age < 35