Question: Which promotional single from Taylor Swift's "Red" album is about falling in love after a failed relationship?

Context paragraphs:
Begin Again (Taylor Swift song): "Begin Again" is a song written and recorded by American singer-songwriter Taylor Swift for her fourth studio album, "Red" (2012).  Swift co-produced the song with Nathan Chapman and Dann Huff.  Initially released as a promotional single on September 25, 2012 by Big Machine Records, the song served as the second single from "Red" on October 1, 2012.  "Begin Again" is a country song, with the lyrical content finds Swift falling in love again after a failed relationship.

Red (Taylor Swift song): "Red" is a song recorded by American singer-songwriter Taylor Swift for her fourth studio album of the same name (2012).  It was released on October 2, 2012, in the US by Big Machine Records as the second promotional single from "Red" in 2012 and serves as the album's fifth single on June 21, 2013.  It was part of the tracks released during the four weeks preceding the release of the album.  Musically, "Red" is a country song, and its lyrics uses colors and metaphors to describe an intense and tumultuous relationship.

Our Song (Taylor Swift song): "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.

White Horse (Taylor Swift song): "White Horse" is a song performed by American singer-songwriter Taylor Swift.  The song was written by Swift and Liz Rose and produced by Nathan Chapman, with Swift's aid.  The song was released on December 7, 2008 by Big Machine Records, as the second single from Swift's second studio album "Fearless" (2008).  Swift and Rose composed the song about one of Swift's ex-boyfriends, when Swift discovered he was not what she had perceived of him.  It focused on the moment where Swift accepted that the relationship was over.  "White Horse" is, musically, a country song and uses sparse production to emphasize vocals.  Lyrically, the track speaks of disillusionment and pain in a relationship, drawing references to fairytales.

Picture to Burn: "Picture to Burn" is a song recorded by American singer-songwriter Taylor Swift.  It was co-written by Swift and Liz Rose, and produced by Nathan Chapman.  It was released on February 3, 2008 by Big Machine Records as the fourth single from Swift's eponymous studio album, "Taylor Swift" (2006).  It was inspired by the narcissistic and cocky nature of her former high school classmate and ex-boyfriend Jordan Alford with whom Swift never established a formal relationship.  In retrospect, Swift has stated that she has evolved on a personal level and as a songwriter, claiming she processed emotions differently since "Picture to Burn".  The song was chosen as a single based on the audience's reaction to it in concert.  Musically, the track is of the country rock genre with prominent usage of guitar, banjo, and drums.  The lyrics concern setting fire to photographs of a former boyfriend.

Speak Now (song): "Speak Now" is a song by American singer-songwriter Taylor Swift.  The song, written and produced by Swift with Nathan Chapman, was released as a promotional single on October 5, 2010, by Big Machine Records from her 2010 album of the same name.  Swift wrote the song about interrupting a wedding, after conversing with her friend, whose ex-boyfriend would soon wed to someone else, and having a dream about one of her own ex-boyfriends marrying another girl.  The song relies on acoustic guitar and is a narration from the perspective of a person who crashes her former love's wedding in attempt to win him back.

I Knew You Were Trouble: "I Knew You Were Trouble" is a song recorded by American singer-songwriter Taylor Swift for her fourth studio album, "Red" (2012).  It was released on October 9, 2012, in the United States by Big Machine Records as the third promotional single from the album.  Later, "I Knew You Were Trouble" was released as the third single from "Red" on November 27, 2012, in the United States.  It was written by Swift, Max Martin and Shellback, with the production handled by the latter two.

State of Grace (Taylor Swift song): "State of Grace" is a song by American singer-songwriter Taylor Swift from her fourth studio album "Red" (2012).  It was released to the iTunes Store on October 16, 2012, in the United States by Big Machine Records as the fourth and final promotional single from the album.  It was the only promotional single from the album that was not re-issued as an official single, as "Begin Again", "Red", and "I Knew You Were Trouble", were all later re-issued as official singles.  The song was written by Swift and produced by Nathan Chapman and Swift.  Musically, the song is a departure from Swift's typical country pop, using influences of alternative rock while being compared to bands such as U2, Muse and The Cranberries.  The song has received immense praise from music critics, who have complimented its broader sound in comparison with Swift's previous material.

Fearless (Taylor Swift song): "Fearless" is a country pop song performed by American singer-songwriter Taylor Swift.  The song was co-written by Swift in collaboration with Liz Rose and Hillary Lindsey and produced by Nathan Chapman and Swift.  "Fearless" was released on January 3, 2010 by Big Machine Records as the fifth and final single from Swift's second studio album of the same name (2008).  Swift composed the song while traveling on tour to promote her eponymous debut album, "Taylor Swift" (2006).  She wrote "Fearless" in regard to the fearlessness of falling in love and eventually titled her second studio album after the song.  Musically, it contains qualities commonly found in country pop music and, lyrically, is about a perfect first date.

You're Not Sorry: "You're Not Sorry" is a country rock song performed by American singer-songwriter Taylor Swift.  The song was solely written by Swift and produced by Nathan Chapman with Swift's aid.  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.  A remix version for the television episode of "" in which Swift made an appearance was later released.  Swift wrote "You're Not Sorry", inspired by an ex-boyfriend who was revealed to be opposite of what he appeared to be.  The song is a power ballad with country and rock music influences.

Supporting paragraphs: State of Grace (Taylor Swift song) Begin Again (Taylor Swift song)
Answer: Begin Again