query: SELECT Nationality FROM HOST WHERE Age  >  45 INTERSECT SELECT Nationality FROM HOST WHERE Age  <  35
question: Which nations have both hosts of ages above 45 and hosts of ages below 35?
query_toks: SELECT Nationality FROM HOST WHERE Age > 45 INTERSECT SELECT Nationality FROM HOST WHERE Age < 35
query_toks_no_value: select nationality from host where age > value intersect select nationality from host where age < value
question_toks: Which nations have both hosts of ages above 45 and hosts of ages below 35?