Use reasoning to lead to the answer of the following question:
Billy wasn't a stranger, but they hadn't spoken to him often, either. How would you describe him?\nOptions:\n- family\n- known person\n- friend\n- relative\n- crowd
 Reasoning process:
User
Billy wasn't a stranger, but a known person. Billy can be described as a known person for them but they hadn't spoken to him often, either. Therefore, the final answer is known person.
Assistant