Question: What song, written by Taylor Swift during her freshman year of high school, was included in her third studio album, "Speak Now"?

"Tim McGraw" is the debut single and first published song recorded by American singer-songwriter Taylor Swift.  The song was written by Swift and Liz Rose, and produced by Nathan Chapman.  It was released on June 19, 2006 by Big Machine Records as Swift's debut single and the lead single from Swift's eponymous debut album.  The song was written about all the different things that would remind the subject of Swift and their time spent together, once he departed.  "Tim McGraw" is a musical interconnection of traditional and modern country music.  Lyrically, the track lists items in order to associate a past relationship, one of them being country artist Tim McGraw's music.  Swift wrote "Tim McGraw" during her freshman year of high school, knowing that she and her senior boyfriend would break up at the end of the year when he left for college. <SEP>  Swift wrote the song when she was 16 years old, prior to the release of her debut single "Tim McGraw" in 2006. "Sparks Fly" is a song written and recorded by American singer-songwriter Taylor Swift for her third studio album "Speak Now" (2010).  Following a 2007 live performance of the song, "Sparks Fly" grew in popularity among Swift's fanbase.  While "Speak Now" was under production, she received requests from fans to include the song on the album.  Produced by Swift and Nathan Chapman, the song was serviced to country radio in the United States by Big Machine Records on July 18, 2011, as the fifth single from "Speak Now".  A CD single was released on Swift's official store for a limited time on August 10, 2011. <SEP> "Fifteen" is a country pop song performed by American singer-songwriter Taylor Swift.  Swift self-penned the song and co-produced it along with Nathan Chapman.  "Fifteen" was released on August 30, 2009 by Big Machine Records, as the fourth single from Swift's second studio album, "Fearless" (2008).  The song was inspired by Swift's freshman year of high school at Hendersonville High School, where she first encountered heartbreak, along with her best friend Abigail Anderson.  After writing it, Swift asked Anderson for authorization to record the song (due to personal references in the song); Anderson affirmed and it was ultimately included on "Fearless".  "Fifteen" is a ballad, which has Swift reminiscing on events that occurred to her and her best friend at the age of 15 and cautioning teenagers to not fall in love easily. <SEP> "Our Song" is a country song performed by American singer-songwriter Taylor Swift.  The song was written by Swift and produced by Nathan Chapman.  It was released on September 9, 2007 by Big Machine Records as the third single from Swift's eponymous debut album, "Taylor Swift" (2006).  Swift solely composed "Our Song" for the talent show of her freshman year in high school, about a boyfriend who she did not have a song with.  It was included on "Taylor Swift" as she recalled its popularity with her classmates.  The uptempo track is musically driven mainly by banjo and lyrically describes a young couple who use the events in their lives in place of a regular song.