In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Ex Input:
Passage: Richie Donovan works as a professional thief for Groznyi, a wealthy businessman, to pay off his debt for being smuggled into the U.S. as a child. He pulls off an initially successful diamond heist, but it is botched when he is involved in two separate car accidents. He is given one last chance to pay off his debt by going to Russia to steal a priceless antique cross, locked in a safe in a Moscow penthouse apartment. Richie and his Russian accomplices, brothers Peter and Yuri, recover the cross; but their elevator becomes stuck on the uncompleted 13th floor. Believing the police have stopped the elevator, the thieves take their fellow passengers hostage to negotiate an escape. They agree to send one hostage down; but, when the elevator doors open on the ground floor, the hostage has mysteriously been beheaded. 
The remaining hostages quickly divide into two groups: a Christian group consisting of Sonya, Helena and Katerina, who are later joined by Yuri, and another group consisting of nerdy Dmitry, beautiful Anna, and incompetent security guard Boris.
In the confusion, the Christian group seizes firearms and takes control, shooting Peter. Katerina is sent to stand guard over Richie and the remainder of the hostages, while Sonya takes Yuri to a chamber where he is to sacrificed by a wild man in armor named Alex. Yuri escapes, but he is impaled by one of Alex's traps, complete with disco music and lighting. In his rage, Alex kills Katerina, allowing Richie and the hostages to escape. They discover Alex's lair, where he has been watching everyone using security cameras. A photo reveals that Alex is the twin brother of Sonya, and they both believe themselves to be descendants of Ivan the Terrible. The group splits when Richie and Anna decide to chase after Alex, while Boris and Dmitry prefer to rig the room with various traps they have constructed and wait for Alex to come to them. 
Question: Who are the people who think the authorities are responsible for the elevator stopping, leading them to take hostages?

Ex Output:
Richie.


Ex Input:
Passage: The St. Johns River lies within a humid subtropical zone. In summer months, the temperature ranges from 74 and 92 °F (23 and 33 °C), and between 50 and 72 °F (10 and 22 °C) in the winter, although drops may occur in winter months to below freezing approximately a dozen times. Water temperatures in the river correlate to the air temperatures. The average range of water temperatures is between 50 and 95 °F (10 and 35 °C), rising in the summer months. Where the river widens between Palatka and Jacksonville, wind becomes a significant factor in navigation, and both whitecap waves and calm surface waters are common.Rain occurs more frequently in late summer and early fall. Tropical storms and nor'easters are common occurrences along the Atlantic coast of Florida; the St. Johns River lies between 10 and 30 miles (16 and 48 km) inland, so any storm striking the counties of Indian River north to Duval produces rain that is drained by the St. Johns River. Tropical Storm Fay in 2008 deposited 16 inches (410 mm) of rain in a 5-day period, most of it located near Melbourne. The St. Johns near Geneva in Seminole County rose 7 feet (2.1 m) in four days, setting a record. The river near Sanford rose 3 feet (1 m) in 36 hours. Fay caused severe flooding in the middle basin due not only to the deluge but the flat slopes of the river. Typically, however, the St. Johns basin receives between 50 and 54 inches (1,300 and 1,400 mm) of rain annually, half of it in summer months. The rate of evapotranspiration corresponds to rainfall, ranging between 27 and 57 inches (690 and 1,450 mm) a year, most of it occurring in the summer. 
Question: What is the full name of the place where water temperatures correlate to the air temperatures?

Ex Output:
St. Johns River.


Ex Input:
Passage: Irene Morrison, a working class mother of two boys, lives in Upstate New York and works as a supermarket cashier. She also harbors a cocaine addiction. Her eldest son, Ben, whose birthday is approaching, asks Irene to buy a snake for him; she suggests Lego instead. On the night of Halloween, Irene takes her kids trick-or-treating and, at one of the houses they visit, she meets Bob, a nurse.
Later that night, her husband Steve arrives home with a toilet, announcing he's going to build them a second bathroom. In bed, Steve tries to initiate sex, but Irene says she doesn't feel very sexy. She changes the subject back to decorating their bathroom. The next day, Irene takes the kids to a reptile store to buy a snake, but finds that they don't have enough money for one. While her boys wait in the car, Irene visits her dealer, asking him for another fix, but he refuses since she hasn't been paying for the last couple of weeks.
At work, Irene contemplates taking money from the cash register. She then goes back to her dealer with Ben's birthday check from her mother-in-law, but the dealer refuses to take it. Afterwards, Irene checks herself into a drug rehabilitation center. At a meeting about cravings, she meets fellow addict Lucy, and befriends her. While at the facility, Irene again encounters Bob. Before she leaves, Bob visits with a book that helped him during his quitting phase, and offers her his support. 
Question: Who helps the wife of the person that wants to build a second bathroom?

Ex Output:

Bob.