Instructions: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Input: When are you considered a senior?, Context: As of 2000[update], children and teenagers (0–19 years old) make up 15.1% of the population, while adults (20–64 years old) make up 65% and seniors (over 64 years old) make up 19.9%.
Output:
over 64 years old