In Book 4, what magical creature does Harry answer a riddle from in the maze during the Triwizard Tournament?
A sphinx.
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> In Book 4, what magical creature does Harry answer a riddle from in the maze during the Triwizard Tournament? [/INST] A sphinx. </s>