TASK DEFINITION: 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.
PROBLEM: Passage: A little redhead, freckled 9-year-old boy (whose name is not mentioned during the movie, but is revealed in the very end of the movie, as well as in the credits, to be Lil' Pimp) is unable to adapt to suburban life, as his only friend is a foul mouthed gerbil and faces constant rejection by his peers. He accidentally meets a prostitute under the name of Sweet Chiffon, who takes him to her working place, a bar named "the Playground", where he befriends the pimp "Fruit Juice", who gives him a small amount of "pimp glitter". He decides he wants to become a pimp. 
The following day at school, during show and tell he is scorned by his classmates for not having a living male relative and decides to use the pimp glitter to summon Fruit Juice, who consequently impresses the whole class. When he visits the Playground again, Fruit Juice alters the boy's style and dresses him as a pimp, too. Meanwhile, mayor Tony Gold threatens to close Fruit Juice's bar, unless he is given 90% of the profits. After this incident the boy's mother goes in search of him, first directed to a gay bar and informed by Sweet Chiffon of a "nasty midget" closely resembling her son and then to the Playground. The boy refuses to return home to his mother, of which mayor Tony is informed directly and takes advantage, accusing Fruit Juice of keeping the boy against his will.  He is promptly arrested and his bar is closed down. Afterwards, mayor Tony Gold kidnaps Fruit Juice's prostitutes, in order to exploit them, while assigning two policemen to plant a bomb in the closed Playground.

SOLUTION: What is the name of the person Sweet Chiffon takes to her working place?

PROBLEM: Passage: Boo-Boo Bear wakes up from winter hibernation, excited about the new Spring. Then Yogi Bear wakes up, his only interest finding some food to eat. Cindy Bear unsuccessfully tries to woo Yogi. After Ranger Smith thwarts Yogi's latest attempts to grab some food, Yogi gets angry and convinces the Ranger to transfer him out of Jellystone National Park. Smith prepares Yogi to be sent over to the San Diego Zoo along with an identification tag. Yogi first says goodbye to everything, but tricks another bear named Corn Pone into going to California instead of him and Boo-Boo and Cindy remain unaware of this, thinking Yogi has departed for good.
Soon, Yogi is stealing food from all over the park under the alter ego "The Brown Phantom", but Smith believes it is another bear. He threatens whoever it is to be sent to the zoo. Cindy, wishing to be with Yogi at the zoo, angers Smith into mistakenly sending her away. However, she gets sent to the St. Louis Zoo instead, as the San Diego Zoo does not need any more bears. When she realizes her true destination, she gets very sad, crying since she knows she would be far from Yogi now.
Late that night, Cindy falls out of the train and becomes lost. A traveling circus is looking for a great act to raise their ratings, when suddenly, their dog runs off and scares Cindy into walking on the telephone wires, the perfect opportunity for the circus.

SOLUTION: What is the name of the character who is sent to the St. Louis zoo?

PROBLEM: Passage: Balch Creek begins in the Forest Park neighborhood in unincorporated Multnomah County near the intersection of Northwest Skyline Boulevard and Northwest Thompson Road at the crest of the West Hills. It flows generally east about 3.5 miles (5.6 km) to its confluence with the Willamette River, a major tributary of the Columbia River. The creek drops from 1,116 feet (340 m) above sea level at its source to 46 feet (14 m) at its mouth, a total of 1,070 feet (330 m). Most of this occurs in the first 2.5 miles (4.0 km). In the hills, the stream gradient (slope) generally ranges from 15 to 30 percent interspersed with sections of less than 15 percent along the middle reaches.From its source, the creek runs east on private property near Forest Park, a large municipal park in Portland, before turning briefly south about 3 miles (5 km) from the mouth. Soon thereafter, the stream receives an unnamed tributary on the right bank and turns southeast on private property along Northwest Cornell Road. It enters the city and the Audubon Society of Portland simultaneously about 2 miles (3 km) from the mouth, receives two more unnamed tributaries on the right, and flows northeast, entering the part of Forest Park known as Macleay Park.For about 0.25 miles (0.40 km) the creek parallels Wildwood Trail, the main hiking trail in Forest Park, until reaching a former public restroom known as the Stone House. From here Balch Creek runs beside the Lower Macleay Trail, another hiking trail, for about 0.8 miles (1.3 km). Near Northwest Thurman Street, roughly 1 mile (1.6 km) from the mouth, the creek flows through a trash rack into an 84-inch (210 cm) diameter storm sewer. City workers first diverted the creek into a pipe in the early 20th century. The water empties into the Willamette River in the city's Northwest Industrial neighborhood at Outfall 17. About 10 miles (16 km) below this outfall, the Willamette enters the Columbia River.

SOLUTION:
What is a tributary of for the Willamette River?