Please answer this: Determine the topic of the question. Question: "what is considered a large car?" Topic:
++++++++
Answer: Full-size car

Please answer this: Determine the topic of the question. Question: "What Causes Brain Freeze?" Topic:
++++++++
Answer: Ice-cream headache

Please answer this: Determine the topic of the question. Question: "how many users do twitter have?" Topic:
++++++++
Answer:
Twitter