Question: American singer-songwriter Taylor Swift's career began with a record deal with Big Machine Records in 2005, including "Our Song", a country song performed by American singer-songwriter Taylor Swift, was written by Swift, and produced by who?

<P0-S0> American singer-songwriter Taylor Swift's career began with a record deal with Big Machine Records in 2005 and the release of her eponymous debut album the following year. <P0-S1>  In the United States, "Taylor Swift" peaked at number five on the "Billboard" 200 and stayed the longest on the chart during the 2000s. <P0-S2>  Swift followed with the release of the EPs "" and "Beautiful Eyes", which peaked at number twenty and number nine on the "Billboard" 200, respectively. <P0-S3>  All of its singles—"Tim McGraw", "Teardrops on My Guitar", "Our Song", "Picture to Burn", and "Should've Said No"—charted within the top forty in the United States and were certified platinum by the RIAA. <SEP> <P1-S0> "Our Song" is a country song performed by American singer-songwriter Taylor Swift. <P1-S1>  It was released on September 9, 2007 by Big Machine Records as the third single from Swift's eponymous debut album, "Taylor Swift" (2006). <P1-S2>  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. <P1-S3>  It was included on "Taylor Swift" as she recalled its popularity with her classmates. <P1-S4>  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. <P1-S5>  The song was written by Swift and produced by Nathan Chapman. <SEP> <P2-S0> "Fifteen" is a country pop song performed by American singer-songwriter Taylor Swift. <P2-S1>  Swift self-penned the song and co-produced it along with Nathan Chapman. <P2-S2>  "Fifteen" was released on August 30, 2009 by Big Machine Records, as the fourth single from Swift's second studio album, "Fearless" (2008). <P2-S3>  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. <P2-S4>  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". <P2-S5>  "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> <P3-S0> "You're Not Sorry" is a country rock song performed by American singer-songwriter Taylor Swift. <P3-S1>  The song was solely written by Swift and produced by Nathan Chapman with Swift's aid. <P3-S2>  It was released on October 28, 2008 by Big Machine Records as a promotional single from Swift's second studio album, "Fearless" on iTunes, though it is no longer available. <P3-S3>  A remix version for the television episode of "" in which Swift made an appearance was later released. <P3-S4>  Swift wrote "You're Not Sorry", inspired by an ex-boyfriend who was revealed to be opposite of what he appeared to be. <P3-S5>  The song is a power ballad with country and rock music influences.