instruction:
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.
question:
Passage: The Willamette River ( (listen) wil-AM-it) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is 187 miles (301 km) long, lying entirely in northwestern Oregon in the United States. Flowing northward between the Oregon Coast Range and the Cascade Range, the river and its tributaries form the Willamette Valley, a basin that contains two-thirds of Oregon's population, including the state capital, Salem, and the state's largest city, Portland, which surrounds the Willamette's mouth at the Columbia.
Originally created by plate tectonics about 35 million years ago and subsequently altered by volcanism and erosion, the river's drainage basin was significantly modified by the Missoula Floods at the end of the most recent ice age. Humans began living in the watershed over 10,000 years ago. There were once many tribal villages along the lower river and in the area around its mouth on the Columbia. Indigenous peoples lived throughout the upper reaches of the basin as well.
Rich with sediments deposited by flooding and fed by prolific rainfall on the western side of the Cascades, the Willamette Valley is one of the most fertile agricultural regions in North America, and was thus the destination of many 19th-century pioneers traveling west along the Oregon Trail. The river was an important transportation route in the 19th century, although Willamette Falls, just upstream from Portland, was a major barrier to boat traffic. In the 21st century, major highways follow the river, and roads cross it on more than 50 bridges.
Since 1900, more than 15 large dams and many smaller ones have been built in the Willamette's drainage basin, 13 of which are operated by the U.S. Army Corps of Engineers (USACE). The dams are used primarily to produce hydroelectricity, to maintain reservoirs for recreation, and to prevent flooding. The river and its tributaries support 60 fish species, including many species of salmon and trout; this is despite the dams, other alterations, and pollution (especially on the river's lower reaches). Part of the Willamette Floodplain was established as a National Natural Landmark in 1987 and the river was named as one of 14 American Heritage Rivers in 1998.
answer:
What organization operates 13 of the dams built in the river that is a major tributary of the Columbia river?


question:
Passage: In Eagles Nest, Western Australia, a wealthy motel proprietor Jack Taylor believes his wife Alice to be having an affair. After a violent argument, Jack hires Charlie Wolfe, a private investigator and contract killer. When Charlie returns with video proof Alice is having sex with Dylan Smith, Jack orders Charlie to kill her.  Alice makes an appointment with dentist Nathan Webb to work on her tooth, which Jack chipped when he hit her. Jack tells Charlie about Alice's dentist appointment. Before she leaves, Alice sneaks into Jack's office and robs his safe.
Charlie is amused to see Nathan and his receptionist wife Lucy drug Alice, kidnap her, and eventually, after several mishaps, send her over a cliff in a flaming car. Charlie takes incriminating pictures of the acts. Lucy finds Jack's stolen money in Alice's bag and takes it before trying to kill her. Unknown to all involved, Alice wakes up in time to escape the car before it crashes and explodes. Satisfied that Alice is dead, Charlie returns to Jack for payment, not telling him that the hit was carried out by other people. When Jack finds his safe empty, he immediately suspects Alice and Dylan. He reassures Charlie he has more money in the bank, and Charlie says he will return the next day.
Meanwhile, Nathan and Lucy initiate their insurance fraud scheme by exchanging Lucy's dental records with Alice's, hoping to fool people into believing that Lucy died in the fiery car crash. Bruce Jones, a corrupt cop, immediately recognizes the fraud, and while impressed that Nathan is able to murder to his own wife, demands half the payout to stay quiet. At the same time, Charlie anonymously blackmails Nathan with pictures of Alice's kidnapping and assumed death. Lucy pushes Nathan to pay the blackmailer and be done with it, and he reluctantly sets up a meeting.
answer:
Who did Jack Taylor hit and chip their tooth?


question:
Passage: On August 22, 2010 in rural Ohio, serial killer Edward Scarka is shot to death during a police raid of his farmhouse. At the time of Edward's death, married couple Sarah and John give birth to their son, Miles, in Pennsylvania. Miles shows extreme wisdom and intelligence from quite a young age, and begins speaking fluently before he is even a toddler.
When Miles turns eight in 2018, Sarah and John begin noticing behavioral changes in him. One night he plays a prank on his babysitter Zoe, seriously injuring her, but claims no memory of the incident. Days later at school, he attacks a classmate with a wrench he obtains from the janitor's closet. Sarah brings Miles to psychologist Elaine Strasser, and also turns over a tape recording of Miles talking apparent gibberish in his sleep. Elaine gives the tape to a colleague, Arthur Jacobson, an expert on rebirth and reincarnation. Arthur reveals that the gibberish Miles spoke on the tape is in fact Hungarian, and that the words translate to "I'll cut your eyes out and watch you die, whore."
Unwilling to believe Arthur's assertion that an unsettled spirit is vying for control of Miles's body, Sarah dismisses him. Later at home, the family's dog goes missing, and John becomes infuriated when he finds that Miles has been recording the couple's bedroom with a baby monitor. John leaves to stay with his brother, leaving Sarah alone with Miles in the house. Miles awakens her in the middle of the night, and she finds a swarm of flies in the house. In the basement, Sarah discovers the family's dismembered dog. Miles apologizes, and explains that someone is invading his dreams every night, and that he has to "make room.".
answer:

Who plays a prank on their babysitter?