Teacher: In this task, you are given a question. You have to answer the question based on your information.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Roman Yakub won first price in a Choral Composition Competition at a liberal arts college founded by who?
Solution: William Egbert
Reason: This is a good example, and output correctly answers the question.

Now, solve this instance: Who directed the video for the single released on February 19, 2007 by Taylor Swift?
Student:
Trey Fanjoy