Question: Which group is from England, Dinosaur Pile-Up or X Ambassadors?

full_context: Document 1: Dinosaur Pile-Up: Dinosaur Pile-Up are an English alternative rock band who formed in late 2007. Hailing from Leeds, West Yorkshire. Current members are lead singer and guitarist Matt Bigland, drummer Mike Sheils and bassist Jim Cratchley. Their past members include Steve Wilson (2008-2010), Tom Dornford-May (2008-2010), Tommy Davidson (2008), Harry Johns (2010-2011), James Sacha (2013).
Document 2: Jungle (X Ambassadors and Jamie N Commons song): "Jungle" is a song by American rock band X Ambassadors and British blues rock singer Jamie N Commons. It was released as a single on 18 December 2013 by KIDinaKORNER and Interscope. The track appeared on X Ambassadors' 2014 EP "The Reason" and their 2015 studio album "VHS".
Document 3: Arctic Monkeys: Arctic Monkeys are an English rock band formed in 2002 in High Green, a suburb of Sheffield. The band consists of Alex Turner (lead vocals, rhythm/lead guitar), Matt Helders (drums, vocals), Jamie Cook (lead/rhythm guitar) and Nick O'Malley (bass, backing vocals). Former band member Andy Nicholson (bass guitar, backing vocals) left the band in 2006 shortly after their debut album was released.
Document 4: Shed Seven: Shed Seven are an English alternative rock band, formed in York in 1990. One of the groups which contributed to the Britpop music scene of the 1990s, they never received the degree of mainstream success achieved by the likes of Oasis and Blur. They originally comprised singer Rick Witter, guitarist/keyboardist Joe Johnson, bassist Tom Gladwin and drummer Alan Leach. Johnson was later replaced by Paul Banks.
Document 5: XTRMST: XTRMST is an American straight edge hardcore band featuring Davey Havok and Jade Puget of AFI. XTRMST is Havok and Puget's second side project after their electronic project Blaqk Audio. They released their debut album "XTRMST" in 2014 on long-time friend Steve Aoki's Dim Mak Records. Havok and Puget later added Chris Sorenson (Saosin) on bass, Josh James (Stick to Your Guns, Evergreen Terrace), Casey Jones on guitar, and Val Saucedo (Loma Prieta, Punch) on drums.
Document 6: Matt Bigland: Matt Bigland (born 8 July 1985) is an English rock musician, multi-instrumentalist and songwriter. He is best known as the founder, songwriter, and lead singer/guitarist of the alternative rock band Dinosaur Pile-Up.
Document 7: Imagine Dragons: Imagine Dragons is an American rock band from Las Vegas, Nevada, consisting of lead vocalist Dan Reynolds, lead guitarist Wayne Sermon, bassist and keyboardist Ben McKee, and drummer Daniel Platzman. The band first gained exposure in 2012 with the releases of their debut studio album "Night Visions" and its first single "It's Time". "Billboard" placed them at the top of their "Year In Rock" rankings for 2013, and named them their "Breakthrough Band of 2013". "Rolling Stone" named their single "Radioactive" from "Night Visions" the "biggest rock hit of the year", and MTV called them "the year's biggest breakout band". "Night Visions" peaked at number two on the weekly US "Billboard" 200 chart and the UK Albums Chart. The band's second studio album "Smoke + Mirrors" was released in 2015, and reached number one in the US, Canada and the UK. After touring for their sophomore record, the band took a brief hiatus to focus on their personal lives. During the latter half of 2016, they began recording their third studio album, "Evolve", released in 2017. While all three albums were commercially successful, critical reception was mixed.
Document 8: X Ambassadors: X Ambassadors (also stylized XA) is an American rock band from Ithaca, New York. It currently consists of lead vocalist Sam Harris, keyboardist Casey Harris, lead guitarist Noah Feldshuh, and drummer Adam Levin. Their most notable songs include "Jungle", "Renegades", and "Unsteady". The band's debut full-length album, "VHS", was released on June 30, 2015.
Document 9: The Chevin (band): The Chevin are an English post-punk revival band, based in Leeds who formed in 2010. The band is composed of four childhood friends, Coyle Girelli (lead vocals and guitars), Mat Steel (guitars and keyboards), Jon Langford (bass guitar) and Mal Taylor (drums). The band gets their name from The Chevin, a ridge overlooking their home town of Otley, West Yorkshire.
Document 10: Daddy X: Brad Xavier, known by his stage name Daddy X, is a hip hop artist and record producer. He used to be in the punk/hardcore band Doggy Style, in which he went by the stage name of Brad X. He is the frontman for Kottonmouth Kings, Humble Gods, and X-Pistols (with The Dirtball). He is married to Anna Rose and has a daughter named Sky Blue Xavier, and wrote a song for her on his debut solo album Organic Soul.
Document 11: American Authors: American Authors is an American rock band based in New York City currently signed to Island Records. It currently consists of lead vocalist and guitarist Zac Barnett, lead guitarist and banjoist James Adam Shelley, bassist Dave Rublin, and drummer Matt Sanchez. They are best known for their hit singles "Believer" and "Best Day of My Life" from their debut album "Oh, What a Life", as well as their Top 20 hit, "Go Big or Go Home", from their second album, "What We Live For".
Document 12: The xx: The xx are an English indie pop band formed in 2005 in Wandsworth, London, and currently consists of Oliver Sim (bass, vocals), Romy Madley Croft (guitar, vocals) and Jamie xx (beats, MPC, record production). They are best known for their distinct and unique minimalistic sound that blends the likes of indie pop, indie electronic, dream pop and electronic rock and the dual vocalist setup of both Croft and Sim.
Document 13: The Kooks: The Kooks are an English pop rock band formed in 2004 in Brighton. The band currently consists of Luke Pritchard (vocals/rhythm guitar), Hugh Harris (lead guitar/synth), Alexis Nunez (drums), and Peter Denton (bass guitar). The original bassist was Max Rafferty, and the founding drummer was Paul Garred. The lineup of the band remained constant until the departure of Rafferty in 2008. Dan Logan served as a temporary replacement, until Peter Denton joined the band permanently in October 2008. Early in 2010, Pritchard announced the departure of drummer Paul Garred, due to a nerve problem in his arm. Late in the year, Garred rejoined for studio sessions, however Chris Prendergast played drums when the band played live. Garred finally left in November 2011 after the release of their third album, "Junk of the Heart".
Document 14: Kaiser Chiefs: Kaiser Chiefs are an English indie rock band from Leeds who formed in 2000 as Parva, releasing one studio album, "22", in 2003, before renaming and establishing themselves in their current name that same year. Since their formation the band consists of lead vocalist Ricky Wilson, guitarist Andrew "Whitey" White, bassist Simon Rix, keyboardist and occasional drummer Nick "Peanut" Baines and since 2013 drummer Vijay Mistry, who replaced founding drummer Nick Hodgson who left the band in late 2012.
Document 15: X (American band): X is an American punk rock band, formed in Los Angeles in 1977, among the first wave of American punk. The original members are vocalist Exene Cervenka, vocalist/bassist John Doe, guitarist Billy Zoom and drummer D.J. Bonebrake. The band released seven studio albums from 1980 to 1993. After a period of inactivity during the mid to late 1990s, X reunited in the early 2000s, and currently tours.
ground_truth: Dinosaur Pile-Up