In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Ex Input:
Passage: Wyatt Frame, an executive with the pop music record label MegaRecords, is confronted on a private jet by boy band DuJour over a strange backing track they discovered on their recent single. Wyatt and the plane's pilot parachute out of the jet, leaving it to crash and "kill" the band. 
Wyatt lands outside of the town of Riverdale, and begins searching for a band to replace DuJour. He discovers struggling local rock band The Pussycats: lead vocalist and guitarist Josie McCoy, drummer Melody Valentine, and bassist Valerie Brown. The group accept Wyatt's immediate offer of a major record deal despite its seeming implausibility, and are flown to New York City with their manager Alexander, his sister Alexandra, and Josie's friend Alan M. The group is rebranded "Josie and the Pussycats", to Valerie's chagrin.
Meanwhile, MegaRecords CEO Fiona meets with world government representatives. She details how the United States government has conspired with the music industry to add subliminal messages as backing tracks to pop music to brainwash teenagers into buying consumer products. The government theorizes that the economy can be stimulated by channeling the disposable income of young people into trendy and expensive goods; music artists who discover the truth are "killed".
The band's first single is released, and due to subliminal messaging, is an instant success. Valerie begins to resent the attention the label gives Josie, while Melody's uncanny behavioral perception makes her suspicious of Fiona. Fiona orders Wyatt to kill Valerie and Melody before they uncover the conspiracy; they are sent to a fake appearance on Total Request Live where Carson Daly attempts to kill them, though they survive due to his incompetence. 
Question: Who discovered a strange backing track on their recent single?

Ex Output:
DuJour.


Ex Input:
Passage: Bush starred in the 1990 black comedy film Les Dogs, produced by The Comic Strip for BBC television. Bush plays the bride Angela at a wedding set in a post-apocalyptic Britain. In another Comic Strip Presents film, GLC, she produced and sang on the theme song "Ken". The song was written about Ken Livingstone, the leader of the Greater London Council and future mayor of London, who at the time was working with musicians to help the Labour Party garner the youth vote.Bush wrote and performed the song "The Magician", using a fairground-like arrangement, for Menahem Golan's 1979 film The Magician of Lublin. The track was scored and arranged by Michael Kamen. In 1986, she wrote and recorded "Be Kind to My Mistakes" for the Nicolas Roeg film Castaway. An edited version of this track was used as the B-side to her 1989 single "This Woman's Work". In 1988, the song "This Woman's Work" was featured in the John Hughes film She's Having a Baby, and a slightly remixed version appeared on Bush's album The Sensual World. The song has since appeared on television shows, and in 2005 reached number-eight on the UK download chart after featuring in a British television advertisement for the charity NSPCC.In 1999, Bush wrote and recorded a song for the Disney film Dinosaur, but the track was not included on the soundtrack. According to the winter 1999 issue of HomeGround, a Bush fanzine, it was scrapped when Disney asked her to rewrite the song and she refused. Also in 1999, Bush's song "The Sensual World" was featured prominently in Canadian filmmaker Atom Egoyan's film "Felicia's Journey".In 2007, Bush was asked to write a song for The Golden Compass soundtrack which made reference to the lead character, Lyra Belacqua. The song, "Lyra", was used in the closing credits of the film, reached number 187 in the UK Singles Chart and was nominated for the International Press Academy's Satellite Award for original song in a motion picture. According to Del Palmer, Bush was asked to compose the song on short notice and the project was completed in 10 days. 
Question: What is the last name of the person who wrote and recorded "Be Kind to My Mistakes" ?

Ex Output:
Bush.


Ex Input:
Passage: Marojejy National Park is a national park in the Sava Region of northeastern Madagascar. It covers 55,500 ha (214 sq mi) and is centered on the Marojejy Massif, a mountain chain that rises to an elevation of 2,132 m (6,995 ft).  Access to the area around the massif was restricted to research scientists when the site was set aside as a strict nature reserve in 1952.  In 1998, it was opened to the public when it was converted into a national park.  It became part of the World Heritage Site known as the Rainforests of the Atsinanana in 2007.  Despite its rugged terrain, poaching and selective logging are still persistent problems, particularly since the start of the 2009 political crisis in Madagascar.  Mining, slash-and-burn agriculture, and wood collection also pose threats to the park and its wildlife.
The wide range of elevations and rugged topography of the massif create diverse habitats that transition quickly with changes in altitude.  Warm, dense rainforest can be found at lower elevations, followed by shorter forests at higher elevations, followed still by cloud forest, and topped near the peaks with the only remaining undisturbed mountain scrub in Madagascar.  Better growing conditions for plants can be found on the eastern side of the mountains, which receives more rain than the western side.  This habitat diversity lends itself to high levels of biodiversity.  At least 118 species of bird, 148 species of reptile and amphibian, and 11 species of lemur are known to occur within Marojejy National Park.  One of the lemurs, the silky sifaka (Propithecus candidus) is listed among "The World's 25 Most Endangered Primates".  The helmet vanga (Euryceros prevostii) is considered the iconic bird species of the park.
One path leads from the entrance of the park to the summit.  There are three camps along the route: Camp Mantella at 450 m (1,480 ft) in elevation in lowland rainforest, Camp Marojejia at 775 m (2,543 ft) at the transition between lowland and montane rain forest, and Camp Simpona at 1,250 m (4,100 ft) in the middle of the montane rainforest.  Camp Simpona acts as a base camp for the trek to the summit, a route that stretches 2 km (1.2 mi) and can take up to four or five hours to traverse. 
Question: What is the name of the animal species at the park that is among the top 25 endangered primates?

Ex Output:

silky sifaka.