If you sale all seven of them you might come across an isle or two, but the one with the treasure is in just a single what?\nOptions:\n- sea\n- river\n- ocean\n- body of water\n- auditorium
Let's think carefully first. Step-by-step reasoning process:
User
Isle is an island or peninsula, especially a small one. If you sail all seven of them you might come across an isle or two, but the one with the treasure is in just a single sea. So the final answer is sea.
Assistant