In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Ex Input:
Passage: In 1981 Afghanistan, a Soviet tank unit viciously attacks a Pashtun village harboring a group of mujahideen fighters. Following the assault, one of the tanks—commanded by ruthless commander Daskal (George Dzundza)—takes a wrong turn through a mountain pass and enters a blind valley. Taj returns to discover the village destroyed, his father killed, and his brother martyred by being crushed under Daskal's tank. As the new khan following his brother's death, Taj is spurred to seek revenge by his cousin Moustafa, an opportunistic scavenger. Together they lead a band of mujahideen fighters into the valley to pursue Daskal's tank (which they call "The Beast"), counting on their captured RPG-7 anti-tank weapon to destroy it.
Lost, isolated, and with their radio damaged in the attack, the tank crew set out to find Kandahar Road and return to Soviet lines. While camping for the night, Afghan communist crewman Samad educates the reluctant tank driver, Konstantin Koverchenko, about the Pashtun people's code of honour, Pashtunwali; particularly nanawatai, which requires that an enemy is to be given sanctuary if he asks.

Ex Output:
What is the name of the crewman who educates the reluctant tank driver?


Ex Input:
Passage: Structure 12 lies to the east of Structure 11. It has also been excavated and, like Structure 11, it is covered with rounded boulders held together with clay. It lies to the east of the plaza in the southern area of the Central Group. The structure is a three-tiered platform with stairways on the east and west sides. The visible remains date to the Early Classic but they overlie Late Preclassic construction. A row of sculptures lines the west side of the structure, including six monuments, a stela and an altar. Further monuments line the east side, one of which may be the head of a crocodilian, the others are plain. Sculpture 69 is located on the south side of the structure.Structure 17 is located in the South Group, on the Santa Margarita plantation. It contained a Late Preclassic cache of 13 prismatic obsidian blades.Structure 32 is located near the western edge of the West Group.Structure 34 is in the West Group, at the eastern corner of Terrace 6.Structures 38, 39, 42 and 43 are joined by low platforms on the east side of a plaza on Terrace 7, aligned north–south. Structures 40, 47 and 48 are on south, west and north sides of this plaza. Structures 49, 50, 51, 52 and 53 form a small group on the west side of the terrace, bordered on the north by Terrace 9. Structure 42 is the tallest structure in the North Group, measuring about 11.5 metres (38 ft) high. All of these structures are mounds.Structure 46 is a mound at the edge of Terrace 8 in the North Group and dates from the Terminal Classic through to the Postclassic. The west side of the structure has been cut by a modern road.Structure 54 is built upon Terrace 8, to the north of Structure 46, in the North Group. It is surrounded by an open area without mounds that was probably a mixed residential and agricultural area. It dates from the Terminal Classic through to the Postclassic.Structure 57 is a large mound at the southern limit of the Central Group with an excellent view across the coastal plain. The structure was built in the Late Preclassic and underwent a second phase of construction in the Late Classic. It may have served as a look-out point.

Ex Output:
Which structure dates from the Terminal Classic through to the Postclassic?


Ex Input:
Passage: "What You Waiting For?" was released as the lead single from Love. Angel. Music. Baby. on September 28, 2004. The single peaked at number 47 on the Billboard Hot 100, and was commercially successful overseas, topping the chart in Australia and reaching the top 10 in several countries including France, Netherlands, New Zealand, Sweden, and the United Kingdom. "Rich Girl", featuring Eve, was released as the album's second single on December 14, 2004, becoming Stefani's first top-10 entry as a solo artist in the US when it peaked at number seven on the Billboard Hot 100. Elsewhere, the song performed equally as successfully as "What You Waiting For?". "Hollaback Girl" was released as the third single on March 15, 2005. It became the album's best-selling and most popular single, while also becoming the first single to sell one million digital copies in the US. The song topped the Billboard Hot 100 within six weeks of its release, earning Stefani her first number-one single on the chart."Cool" was released as the fourth single from the album on July 5, 2005. The song fared moderately on the charts, reaching the top 10 in Australia and New Zealand, as well as the top 20 in Denmark, Germany, Ireland, Norway, the UK and the US. "Luxurious" was released as the fifth single in October 2005. The single version features rapper Slim Thug. The song was less successful than the previous singles from the album, peaking at number 21 on the Billboard Hot 100. "Crash" was not originally planned as a single, but due to Stefani's pregnancy, her second solo album was delayed, and the song was released as the sixth and final single from the album on January 24, 2006.

Ex Output:

What is the title of the song that peaked at number 21 on the Billboard Hot 100?