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.

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.
Who is making the man who gets in two car accidents go to Russia?

Passage: Public transport in the city consists primarily of a First West of England bus network. Other providers are Abus, Stagecoach West, Stagecoach South West and Wessex Bus. Bristol's bus service has been criticised as unreliable and expensive, and in 2005 FirstGroup was fined for delays and safety violations.Although the city council has included a light rail system in its local transport plan since 2000, it has not yet funded the project; Bristol was offered European Union funding for the system, but the Department for Transport did not provide the required additional funding. The most recent light rail proposal was put forward as part of a consultation produced by the West of England Local Enterprise Partnership in November 2016, outlining potential light rail/tram routes from the city centre to Bristol Airport, the eastern and north west fringes of the city, and a route along the A4 road to Bath. In 2017, a further feasibility study will be undertaken into the possibility of an underground light rail system.A new bus rapid transit system (BRT) called MetroBus, is currently under construction across Bristol, as of 2018, to provide a faster and more reliable service than buses, improve transport infrastructure and reduce congestion. The MetroBus rapid transit scheme will run on both bus lanes and segregated guided busways on three routes; North Fringe to Hengrove (route m1), Ashton Vale to Bristol Temple Meads (route m2), and Emersons Green to The Centre (route m3). MetroBus services started in 2018.Three park and ride sites serve Bristol.
The city centre has water transport operated by Bristol Ferry Boats, Bristol Packet Boat Trips and Number Seven Boat Trips, providing leisure and commuter service in the harbour.
Number Seven Boat Trips operates water transport in what city?

Passage: Two kinds of wet prairies thrive in the Everglades: marl and water-marsh community. Wet prairies are slightly elevated like sawgrass marshes, but contain abundant plant diversity.  Marl prairies are located where marl covers limestone that may protrude as pinnacles or erode into solution holes: depressions formed by the same processes that create sinkholes. Solution holes, however, do not meet the water table; they are filled with rain water. The surface is covered only three to seven months of the year, but the water is usually just 4 inches (10 cm) deep. Marl is created by layers of periphyton loosely attached to the limestone, and forms a grey or white crumbly mud when it dries. When flooded, the marl can support a variety of water plants, and dwarf cypresses may grow for hundreds of years though not exceed 10 feet (3.0 m) in height. Solution holes may remain flooded even when the prairies are dry, and they support aquatic invertebrates such as crayfish and snails, as well as larval amphibians which feed young wading birds. Where the predominant soil is peat, a water-marsh community exists. Its hydroperiod is longer than the marl prairie, although its plants are less diverse. These regions tend to be on the border between sloughs and sawgrass marshes.
Alligators have created an ecological niche in wet prairies; they dig at low spots with their claws and snouts and create ponds free of vegetation that remain submerged throughout the dry season. Alligator holes are integral to the survival of aquatic invertebrates, turtles, fish, small mammals, and birds during extended drought periods. Alligators feed upon animals that visit the hole.

What prairies' surface is covered only three to seven months of the year?