instruction:
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.
question:
Passage: The titular Mindhunters are a group of young FBI students who are undergoing training as profilers. Their instructor, experienced profiler Jake Harris, employs a highly realistic training approach by assigning the group variants of real investigations, including elaborate sets, props, and FBI actors to play out each scenario. 
The students include Bobby, a young man with a talent for fixing things; Vince, a wheelchair-using ex-cop who goes nowhere without his gun; Nicole, a smoker who is attempting to quit; Sara, a talented but insecure profiler who is terrified of drowning; Rafe, a very intelligent, caffeine-powered British investigator; Lucas, a supposedly fearless man whose parents were killed when he was a child; and J.D., their leader and Nicole's lover. Nearing the end of their training, the group's over-all morale is high, though Vince discovers that neither he, nor Sara, will make the rank of "Profiler" after secretly reading their training evaluations. 
Question: What are the names of some of the profilers in training?
answer:
Bobby.


question:
Passage: There is considerable uncertainty about the identities of the Grand Dukes of Lithuania between Traidenis' death in 1282 and Vytenis' assumption of power in 1295. This is in part because the two main sources for Lithuanian history in the 13th century, the Hypatian Codex and the Livonian Rhymed Chronicle, end in the early 1290s. In 1285, one chronicle mentions Daumantas as Grand Duke. He attacked the Bishop of Tver and was severely wounded or even killed in the battle. However, that is the only information about him.
The Gediminid dynasty began its ascent in Lithuania during this time with the emergence of its first leader, Butigeidis. In 1289, leading about 8,000 troops, he attacked Sambia. In 1289 the Teutonic Knights built a castle in present-day Sovetsk (Tilsit) and their raids intensified. Butigeidis was the first to build strong castles along the Neman River. He died in 1290 or 1292, and his brother Butvydas (also known as Pukuveras) inherited the crown. Butvydas was the father of Vytenis and probably of Gediminas. During his short reign Butvydas tried to defend the duchy against the Teutonic Knights; he also attacked Masovia, an ally of the knights. His son, Vytenis, advanced to power in 1295 and ended the period of relative instability. His reign marks the transition from the state's establishment to the point at which it was poised for expansion. 
Question: What is the alias of the person that inherited the crown from Butigeidis?
answer:
Pukuveras.


question:
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?
answer:

DuJour.