Question: Which singer won an award at he 40th Annual American Music Awards who is known for writing narrative songs about her personal life?

full_context: Document 1: BET Awards 2014: The 2014 BET Awards were held at the Nokia Theatre L.A. Live in Los Angeles, California on June 29, 2014. Chris Rock was unveiled as the host for the upcoming BET Awards on May 14 during the network's 106 & Park music video countdown show. Beyoncé lead the nominations with 6, followed by Jay-Z with 5. Drake, Pharrell Williams and August Alsina were tied for 4. Beyoncé was the big winner of the night winning 3 BET Awards, while Nicki Minaj, Drake, August Alsina and Pharrell Williams with 2.
Document 2: BET Awards 2013: The 2013 BET Awards were held at the Nokia Theatre L.A. Live in Los Angeles, California on June 30, 2013. The awards ceremony recognized Americans in music, movies, sports and other fields of entertainment over the past year. Chris Tucker hosted the event. The BET Awards nominations were announced May 14, 2013 at a press conference on the rooftop of L.A.'s Icon Ultra Lounge, just up the street from the Nokia Theatre, where the BET Awards were staged for the first time. Chris Brown was announced as the first confirmed performer. Charlie Wilson was announced as this year's Cadillac Lifetime Achievement Award honoree. R. Kelly also performed at the awards show. The show was the culmination of the cable network's first ever BET Experience, a three-day music and lifestyle fest done in partnership with AEG Live. Chris Brown won the Fandemonium Award for the fourth time in a row, while Nicki Minaj won Best Female Hip-Hop Artist, making history as the first female rapper to win the award four times consecutively. The Young Stars award winner was awarded to Gabrielle Douglas, gold medalist in the 2012 London Summer Olympics. The show opened with a performance by Chris Brown and Nicki Minaj performing Love More.
Document 3: 1989 (Taylor Swift album): 1989 is the fifth studio album by American singer-songwriter Taylor Swift released on October 27, 2014, through Big Machine Records. Swift began composing the album following release of previous studio effort, "Red" (2012). Over the course of the two-year songwriting period, she collaborated with producers Max Martin and Shellback—Martin served as the album's executive producer alongside Swift. The album's title was named after the singer's birth year and inspired by the pop music of the 1980s.
Document 4: Taylor Swift: Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter. One of the leading contemporary recording artists, she is known for narrative songs about her personal life, which have received widespread media coverage.
Document 5: Liz Rose: Liz Rose (born in Dallas, Texas) is an American country music songwriter best known for her work with Taylor Swift. She has co-written twenty of Swift's officially-released songs and singles, including "White Horse," "Teardrops on My Guitar," and "You Belong with Me," which won her and Swift a Grammy Award in 2010.
Document 6: American Music Awards of 2009: The 37th Annual American Music Awards took place on November 22, 2009 at the Nokia Theatre in Los Angeles, California. The nominees were announced on October 13, 2009. For the first time in history, there was no host for the year's ceremony. Instead, various celebrities introduced the performers similar to the procedure at the Grammy Awards. Taylor Swift won five of six categories she was nominated for. Jay-Z and The Black Eyed Peas both won two awards. Michael Jackson's brother Jermaine Jackson accepted his awards on his behalf.
Document 7: Taylor Swift discography: 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. In the United States, "Taylor Swift" peaked at number five on the "Billboard" 200 and stayed the longest on the chart during the 2000s. 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. Swift followed with the release of the EPs "" and "Beautiful Eyes", which peaked at number twenty and number nine on the "Billboard" 200, respectively.
Document 8: 2012 MTV Europe Music Awards: The 2012 MTV EMAs (also known as the MTV Europe Music Awards) were held in Frankfurt, Germany, on 26 August 2012. This was the fifth time the awards had been held in Germany, and the second time Frankfurt had been the host city. On 17 August the nominees were announced. Rihanna received eight nominations while Katy Perry and Taylor Swift received five, leading the categories.
Document 9: American Music Awards of 2010: The 38th Annual American Music Awards were held November 21, 2010, at the Nokia Theatre in Los Angeles, California. The awards recognized the most popular artists and albums from 2010's music list. Nominees were announced on October 12, 2010. Justin Bieber was nominated for, and won, four awards, including Artist of the Year. Usher and Eminem both won two awards; the former was nominated for three and the latter, five.
Document 10: American Music Awards of 2011: The 39th Annual American Music Awards was held on November 20, 2011 (8:00/7:00 EST/CST), at the Nokia Theatre in Los Angeles (see 2011 in music). The awards recognized the most popular artists and albums from the year 2011. Nominees were announced on October 11, 2011. The awards ceremony was host-free. It was broadcast on ABC.
Document 11: Speak Now: Speak Now is the third studio album by American singer-songwriter Taylor Swift. It was released on October 25, 2010, by Big Machine Records. Production for the album took place during 2009 to 2010 at several recording studios, and was handled by Swift and Nathan Chapman. Written entirely by Swift as the follow-up to "Fearless", "Speak Now" expands on the country pop style of her previous work, and features lyrical themes including love, romance and heartbreak.
Document 12: List of songs recorded by Taylor Swift: Taylor Swift is an American singer-songwriter. She signed a record deal with Big Machine Records in 2005 and released her eponymous debut album in 2006. Swift wrote three of the album's tracks: "Our Song", "Should've Said No", and "The Outside". The remaining eight were co-written with writers Liz Rose, Robert Ellis Orrall, Brian Maher, and Angelo Petraglia. In 2007, she released her first extended play (EP) "", which contains two original tracks written by her: "Christmases When You Were Mine" and "Christmas Must Be Something More".
Document 13: American Music Awards of 2012: The 40th Annual American Music Awards was held on November 18, 2012 at the Nokia Theatre in Los Angeles. The awards recognized the most popular artists and albums from the year 2012. It was broadcast live on ABC. The nominees were announced on October 9, 2012 by Christina Aguilera. This year included a brand new category, "Electronic Dance Music". Justin Bieber won all three of his nominations, and of each of their four nominations, Nicki Minaj won two, and Rihanna one. Katy Perry won one of her 2 nominations, whereas Adele and Taylor Swift each won the award for which they were nominated.
Document 14: Taylor Swift (album): Taylor Swift is the debut studio album by American singer-songwriter Taylor Swift, released on October 24, 2006, by Big Machine Records. Swift was 16 years old at the time of the album's release and wrote its songs during her freshman year of high school. Swift has writing credits on all of the album's songs, including those co-written with Liz Rose. Swift experimented with several producers, ultimately choosing Nathan Chapman, who had produced her demo album. Musically, the album is country music styled, and lyrically it speaks of romantic relationships, a couple of which Swift wrote from observing relationships before being in one. Lyrics also touch on Swift's personal struggles in high school.
Document 15: Taylor Swift videography: American singer-songwriter Taylor Swift has released four video albums and has appeared in thirty-eight music videos, five films and three television shows. From her eponymous debut album (2006), she released music videos for the singles "Tim McGraw", "Teardrops on My Guitar", "Our Song", and "Picture to Burn", all directed by Trey Fanjoy and released from 2006–08. For the second of these, she earned an MTV Video Music Award for Best New Artist nomination. She followed with three other music videos in 2008—"Beautiful Eyes" from her extended play of the same name, "Change" from the "AT&T Team USA Soundtrack" and "Love Story" from her second album "Fearless" (2008). The latter was nominated for two awards at the 2009 CMT Music Awards—Video of the Year and Female Video of the Year. For the video of "You Belong with Me" she won Best Female Video at the 2009 MTV Video Music Awards. During her acceptance speech, she was interrupted by rapper Kanye West, which sparked controversy and received much media attention.
ground_truth: Taylor Swift