input: Please answer the following: Given the below context:  Following the mixed success of their musical pursuits in the 1990s, U2 sought to simplify their sound; the Edge said that with Pop, the group had "taken the deconstruction of the rock 'n' roll band format to its absolute 'nth degree". For their tenth album, All That You Can't Leave Behind, the group wanted to return to their old recording ethos of "the band in a room playing together". Reuniting with Eno and Lanois, U2 began working on the album in late 1998. After their experiences with being pressured to complete Pop, the band were content to work without deadlines. With Bono's schedule limited by his commitments to debt relief for Jubilee 2000 and the other band members spending time with their families, the recording sessions stretched through August 2000.Released in October of that year, All That You Can't Leave Behind was seen by critics as a "back to basics" album, on which the group returned to a more mainstream, conventional rock sound. For many of those not won over by the band's forays into dance music, it was considered a return to grace; Rolling Stone called it U2's "third masterpiece" alongside The Joshua Tree and Achtung Baby. The album debuted at number one in 32 countries and sold 12 million copies. Its lead single, "Beautiful Day", was a worldwide hit, reaching number one in Ireland, the UK, Australia, and Canada, while peaking at number 21 in the US. The song earned Grammy Awards for Song of the Year, Best Rock Performance by a Duo or Group with Vocal, and Record of the Year. At the awards ceremony, Bono declared that U2 were "reapplying for the job ... [of] the best band in the world". The album's other singles were worldwide hits as well; "Stuck in a Moment You Can't Get Out Of", "Elevation", and "Walk On" reached number one in Canada, while charting in the top five in the UK and top ten in Australia.  Guess a valid title for it!
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output: U2


Please answer this: Given the below context:  There was considerable local opposition to the Yellowstone National Park during its early years. Some of the locals feared that the regional economy would be unable to thrive if there remained strict federal prohibitions against resource development or settlement within park boundaries and local entrepreneurs advocated reducing the size of the park so that mining, hunting, and logging activities could be developed. To this end, numerous bills were introduced into Congress by Montana representatives who sought to remove the federal land-use restrictions.After the park's official formation, Nathaniel Langford was appointed as the park's first superintendent in 1872 by Secretary of Interior Columbus Delano, the first overseer and controller of the park. Langford served for five years but was denied a salary, funding, and staff. Langford lacked the means to improve the land or properly protect the park, and without formal policy or regulations, he had few legal methods to enforce such protection.   This left Yellowstone vulnerable to poachers, vandals, and others seeking to raid its resources. He addressed the practical problems park administrators faced in the 1872 Report to the Secretary of the Interior and correctly predicted that Yellowstone would become a major international attraction deserving the continuing stewardship of the government. In 1874, both Langford and Delano advocated the creation of a federal agency to protect the vast park, but Congress refused. In 1875, Colonel William Ludlow, who had previously explored areas of Montana under the command of George Armstrong Custer, was assigned to organize and lead an expedition to Montana and the newly established Yellowstone Park. Observations about the lawlessness and exploitation of park resources were included in Ludlow's Report of a Reconnaissance to the Yellowstone National Park. The report included letters and attachments by other expedition members, including naturalist and mineralogist George Bird Grinnell. Grinnell documented the poaching of...  Guess a valid title for it!
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Answer: Yellowstone National Park


input question: Given the below context:  In 1989, scientist Hank Pym resigns from S.H.I.E.L.D. after discovering their attempt to replicate his Ant-Man shrinking technology. Believing the technology is dangerous, Pym vows to hide it as long as he lives. In the present day, Pym's estranged daughter, Hope van Dyne, and former protégé, Darren Cross, have forced him out of his company, Pym Technologies. Cross is close to perfecting a shrinking suit of his own, the Yellowjacket, which horrifies Pym. Upon his release from prison, well-meaning thief Scott Lang moves in with his old cellmate, Luis. Lang visits his daughter Cassie unannounced and is chastised by his former wife Maggie and her police-detective fiancé, Paxton, for not providing child support. Unable to hold down a job because of his criminal record, Lang agrees to join Luis' crew and commit a burglary. Lang breaks into a house and cracks its safe, but only finds what he believes to be an old motorcycle suit, which he takes home. After trying the suit on, Lang accidentally shrinks himself to the size of an insect. Terrified by the experience, he returns the suit to the house, but is arrested on the way out. Pym, the homeowner, visits Lang in jail and smuggles the suit into his cell to help him break out. Pym, who manipulated Lang through an unknowing Luis into stealing the suit as a test, wants Lang to become the new Ant-Man to steal the Yellowjacket from Cross. Having been spying on Cross after discovering his intentions, Van Dyne and Pym train Lang to fight and to control ants. While Van Dyne harbors resentment towards Pym about her mother Janet's death, he reveals that Janet, known as the Wasp, disappeared into a subatomic quantum realm while disabling a Soviet nuclear missile. Pym warns Lang that he could suffer a similar fate if he overrides his suit's regulator. They send him to steal a device that will aid their heist from the Avengers' headquarters, where he briefly fights Sam Wilson.  Guess a valid title for it!???
output answer:
Ant-Man (film)