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: The Rashtrakutas contributed much to the architectural heritage of the Deccan. Art historian Adam Hardy categorizes their building activity into three schools: Ellora, around Badami, Aihole and Pattadakal, and at Sirval near Gulbarga.
The Rashtrakuta contributions to art and architecture are reflected in the splendid rock-cut cave temples at Ellora and Elephanta, areas also occupied by Jain monks, located in present-day Maharashtra. The Ellora site was originally part of a complex of 34 Buddhist caves probably created in the first half of the 6th century whose structural details show Pandyan influence. Cave temples occupied by Hindus are from later periods.The Rashtrakutas renovated these Buddhist caves and re-dedicated the rock-cut shrines. Amoghavarsha I espoused Jainism and there are five Jain cave temples at Ellora ascribed to his period. The most extensive and sumptuous of the Rashtrakuta works at Ellora is their creation of the monolithic Kailasanath Temple, a splendid achievement confirming the "Balhara" status as "one among the four principal Kings of the world". The walls of the temple have marvellous sculptures from Hindu mythology including Ravana, Shiva and Parvathi while the ceilings have paintings.
The Kailasanath Temple project was commissioned by King Krishna I after the Rashtrakuta rule had spread into South India from the Deccan. The architectural style used is Karnata Dravida according to Adam Hardy. It does not contain any of the Shikharas common to the Nagara style and was built on the same lines as the Virupaksha temple at Pattadakal in Karnataka. According to art historian Vincent Smith, the achievement at the Kailasanath temple is considered an architectural consummation of the monolithic rock-cut temple and deserves to be considered one of the wonders of the world. According to art historian Percy Brown, as an accomplishment of art, the Kailasanath temple is considered an unrivalled work of rock architecture, a monument that has always excited and astonished travellers.While some scholars have claimed the architecture at Elephanta is attributable to the Kalachuri, others claim that it was built during the Rashtrakuta period. Some of the sculptures such as Nataraja and Sadashiva excel in beauty and craftsmanship even that of the Ellora sculptures. Famous sculptures at Elephanta include Ardhanarishvara and Maheshamurthy. The latter, a three faced bust of Lord Shiva, is 25 feet (8 m) tall and considered one of the finest pieces of sculpture in India. It is said that, in the world of sculpture, few works of art depicting a divinity are as balanced. Other famous rock-cut temples in the Maharashtra region are the Dhumer Lena and Dashvatara cave temples in Ellora (famous for its sculptures of Vishnu and Shivaleela) and the Jogeshvari temple near Mumbai.

Ex Output:
What are the names of the three school Hardy categorizes the Rashtrakutas building activity as?


Ex Input:
Passage: As the 19th century progressed, the United States government's Indian removal policy pushed Native American tribes west of the Mississippi River.  In 1830, the Indian Removal Act was signed into law, and though that act did not directly address the Potawatomi people of Indiana, it led to several additional treaties that resulted in their removal.  In what came to be known as the Potawatomi Trail of Death, about 860 Potawatomi Indians who had refused to leave were forced to move from Indiana to Kansas.  On September 14, 1838, the group camped near Williamsport, and on September 15 they camped in the southwestern part of the county before moving into Illinois.  Before reaching their destination in Kansas, over 40 of them had died, many of them children; two children died and were buried at the second Warren County campsite.When the county was established, the Wabash River was vital to transportation and shipping.  Zachariah Cicott traded up and down the river, and cities like Attica, Perrysville, Baltimore and Williamsport were founded near the river's banks and flourished because of it.  In the 1840s, the Wabash and Erie Canal began to operate and provided even broader shipping opportunities, but the canal favored towns which were on the "right side" of the river; the canal was on the Fountain County side, and towns like Baltimore dwindled as a result.  Some towns, such as Williamsport and Perrysville, managed to participate in canal traffic through the use of side-cuts that brought traffic from the canal across the river.  When railroads were constructed starting in the 1850s, they in turn began to render the canals obsolete and allowed trade to reach towns that lacked water connections.  The canal continued to be used through the early 1870s.

Ex Output:
What decade did the canals that provided broader shipping opportunities start to decline due to railroads?


Ex Input:
Passage: In August 1953, Presley checked into the offices of Sun Records. He aimed to pay for a few minutes of studio time to record a two-sided acetate disc: "My Happiness" and "That's When Your Heartaches Begin". He later claimed that he intended the record as a gift for his mother, or that he was merely interested in what he "sounded like", although there was a much cheaper, amateur record-making service at a nearby general store. Biographer Peter Guralnick argued that he chose Sun in the hope of being discovered. Asked by receptionist Marion Keisker what kind of singer he was, Presley responded, "I sing all kinds." When she pressed him on who he sounded like, he repeatedly answered, "I don't sound like nobody." After he recorded, Sun boss Sam Phillips asked Keisker to note down the young man's name, which she did along with her own commentary: "Good ballad singer. Hold."In January 1954, Presley cut a second acetate at Sun Records—"I'll Never Stand in Your Way" and "It Wouldn't Be the Same Without You"—but again nothing came of it. Not long after, he failed an audition for a local vocal quartet, the Songfellows. He explained to his father, "They told me I couldn't sing." Songfellow Jim Hamill later claimed that he was turned down because he did not demonstrate an ear for harmony at the time. In April, Presley began working for the Crown Electric company as a truck driver. His friend Ronnie Smith, after playing a few local gigs with him, suggested he contact Eddie Bond, leader of Smith's professional band, which had an opening for a vocalist. Bond rejected him after a tryout, advising Presley to stick to truck driving "because you're never going to make it as a singer".Phillips, meanwhile, was always on the lookout for someone who could bring to a broader audience the sound of the black musicians on whom Sun focused. As Keisker reported, "Over and over I remember Sam saying, 'If I could find a white man who had the Negro sound and the Negro feel, I could make a billion dollars.'" In June, he acquired a demo recording by Jimmy Sweeney of a ballad, "Without You", that he thought might suit the teenage singer. Presley came by the studio, but was unable to do it justice. Despite this, Phillips asked Presley to sing as many numbers as he knew. He was sufficiently affected by what he heard to invite two local musicians, guitarist Winfield "Scotty" Moore and upright bass player Bill Black, to work something up with Presley for a recording session.

Ex Output:

What is the last name of the artist that the receptionist marked as a "Good ballad singer."?