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 Q]: Passage: After Quiriguá's pivotal victory over Copán in 738, K'ak' Tiliw Chan Yopaat rebuilt the main group in the image of Copán itself. Thus, the acropolis, palace, and ballcourt all lie at the southern end of the Great Plaza. The ceremonial centre is laid out around three plazas, the northernmost is the Great Plaza. This plaza measures 325 m (1,066 ft) from north to south and is the largest plaza in the whole Maya region. At the southern end of the Great Plaza is the Ballcourt Plaza, surrounded on three sides by structures associated with the acropolis. The Acropolis Plaza is a fully enclosed plaza within the acropolis itself. The area to the west of the Ballcourt Plaza was probably the riverside docking area and there is evidence that the southern part of the Great Plaza was a marketplace. A number of ceramic-lined wells have been excavated close to the site core, these were all built in the 8th century and although some continued in use into the 9th century, none are known to have been built that late.
1A-1 is an enormous platform forming the northern part of the Great Plaza. It measures 100 by 85 metres (328 by 279 ft) and rises 0.5 metres (20 in) above the level of the southern part of the plaza. It forms the northern portion of the Great Plaza, being built by K'ak' Tiliw Chan Yopaat when he extended the plaza northward. The platform was built from river cobbles and was paved with stone slabs. Platform 1A-1 supported the stelae A, C, D, E and F and Zoomorph B. The platform was built in two phases over about 20 years.
1A-3 is a large mound marking the northern edge of the Great Plaza. It originally measured 82.5 by 20 metres (271 by 66 ft) and was 7 metres (23 ft) high. A 63-metre (207 ft) wide stairway climbed the southern face of the structure from the plaza. The structure was later extended to the north but this second phase of construction was never finished.
The acropolis is the largest architectural complex at Quiriguá, it lies at the southern limit of the ceremonial centre of the city. It is a complex construction, with new buildings and features being added over time. Construction of the acropolis began in 550 and continued through to 810 when the site was abandoned. The acropolis was a palace complex used primarily as an elite residence and for administrative purposes. The acropolis complex includes structures 1B-1, 1B-2, 1B-3, 1B-4, 1B-5 and 1B-6. Excavations of the acropolis encountered the fallen remains of corbel arches, but none are still standing.
[EX A]: What plaza is at the Ballcourt Plaza at the southern end of?

[EX Q]: Passage: En route to California to prospect for gold, ex-sheriff Hooker, professional gambler Fiske, and bounty hunter Luke Daly are forced to stop over in a tiny Mexican village by engine trouble on the ship they are taking. A desperate Leah Fuller hires the three men and local Vicente Madariaga, to rescue her husband, John, who is pinned under debris from a gold mine cave-in in hostile Apache territory.
During the harrowing journey, Luke tries to force himself on Leah late one night, forcing Hooker to intervene. Leah tells Hooker that where her husband is trapped, once was a boom town, but a volcano eruption wiped it out, leaving only a church steeple and the mine uncovered by lava. The resident priest called it the "garden of evil". The Indians now consider the volcano sacred. The group then arrives at the mine. They find John unconscious, and they free him.
Before John wakes up, Hooker sets the man's broken leg.  When John regains consciousness, he accuses Leah of using him to get gold. Hooker talks to Leah later, about what her husband said; after he tells her that he has spotted signs of Apaches nearby, she offers him and the others all the gold they have dug up to take her husband away that night, while she remains behind to make it look like they are all still there. The cynical Fiske unexpectedly offers to stay with her, but when he asks her what he is to her, she tells him, "you're nothing at all, just nothing.".
[EX A]: What are the full names of the two people that travel with the ex-sheriff?

[EX Q]: Passage: Drama critic John Earl observes a piece of artwork in a museum, gazing at it reverently. He asks the museum curator how much it costs, and the curator says that it is not for sale. The artist, James Harlan Corbin [Lederer], does not wish to sell the painting. Nonplussed, Earl returns to his office and phones Corbin with his proposal to sell. Again, Corbin refuses. Earl continues his pursuit to find out who the model for the painting was. He learns it is Helen North, a young woman who looks nothing like the woman in the painting. He visits with her to learn his location, but she refuses, telling him that she will be singing at a local nightclub, where Corbin frequents. Earl finds both of them in the museum, and again confronts Corbin. Becoming clearly annoyed, Corbin invites the singer out for a night in his yacht. She agrees, but is later found washed ashore. Although Police Lt. Roberts initially questions Helen's suitor Hunt Mason, Mason implicates Corbin as the last person who saw Helen North. John Earl works with the police department to arrange for Helen's sister Linda to apply for modeling, in order to spy on Corbin. The two return to Corbin's boathouse. While there, Linda calls for Earl and tells his chef that she is in danger and to notify the police. There, she learns that Corbin did not murder her sister. Thereafter, she falls in love with Corbin and agrees to support him against the district attorney's allegations he killed both Helen and another model, Madonna. Although Corbin has visions that he did so, Linda tells him to make sure he is telling the truth before confessing such heinous crimes. Linda returns home with Corbin's mother, who poisons her tea and tries to inject her with a lethal substance before police shoot. Corbin had suddenly recognized who it was that had planted evidence at the boathouse to implicate him. Police arrive just in time to save Linda from death but not Mrs. Corbin, who dies in her son's arms.
[EX A]:
What is the full name of the person who has a sister named Linda?