What is at the base of the Whomping Willow?
A tunnel that leads to the Shrieking Shack.
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> What is at the base of the Whomping Willow? [/INST] A tunnel that leads to the Shrieking Shack. </s>