What is the name of the dark wizard who was defeated by Harry Potter in the Battle of Hogwarts?
Lord Voldemort
<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 the name of the dark wizard who was defeated by Harry Potter in the Battle of Hogwarts? [/INST] Lord Voldemort </s>