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: 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.
[EX A]: Number Seven Boat Trips operates water transport in what city?

[EX Q]: Passage: Going west where gold is being found, Jan Morell and wife Mary meet in the Napa, California, valley with his prospector brother Frank, but soon hired gunmen Jack Welch and Hank Purvis steal the gold they have panned and kill Mary.
In town, Frank is killed, as well, and Jan seriously wounded. He is cared for by Felipe de Ortega and sister Elena, who explain that Welch and Purvis work for dishonest Mayor Thomas Ainsworth, who also stole the Ortega family's land and property. An approval of statehood for California could restore law and order, as well as citizens' rights.
Elena fears for their safety, but Jan joins forces with Felipe's men to create havoc in Ainsworth's life, rustling horses and stealing money. A new U.S. marshal, Henderson, places a $5,000 reward on him, but Jan nevertheless captures Purvis and threatens to lynch him if he does not confess to Ainsworth's misdeeds. Elizabeth Ainsworth now begins to understand her father's corrupt ways.
As the gunfighting intensifies, both Welch and Felipe are killed. Jan is arrested and faces the hangman, but Henderson believes in his innocence and is able to release him when statehood wins approval and a general amnesty is granted. Jan and Elena plan a new life together.
[EX A]: What is the first name of the person who hired someone to kill Mary?

[EX Q]: Passage: This was followed up by a group of scientists at the Collège de France in Paris: Frédéric Joliot-Curie, Hans von Halban, Lew Kowarski, and Francis Perrin. In February 1939, the Paris Group showed that when fission occurs in uranium, two or three extra neutrons are given off. This important observation suggested that a self-sustaining nuclear chain reaction might be possible. The term "atomic bomb" was already familiar to the British public through the writings of H. G. Wells, in his 1913 novel The World Set Free. It was immediately apparent to many scientists that, in theory at least, an extremely powerful explosive could be created, although most still considered an atomic bomb was an impossibility. Perrin defined a critical mass of uranium to be the smallest amount that could sustain a chain reaction. The neutrons used to cause fission in uranium are considered slow neutrons, but when neutrons are released during a fission reaction they are released as fast neutrons which have much more speed and energy. Thus, in order to create a sustained chain reaction, there existed a need for a neutron moderator to contain and slow the fast neutrons until they reached a usable energy level. The College de France found that both water and graphite could be used as acceptable moderators.Early in 1940, the Paris Group decided on theoretical grounds that heavy water would be an ideal moderator for how they intended to use it. They asked the French Minister of Armaments to obtain as much heavy water as possible from the only source, the large Norsk Hydro hydroelectric station at Vemork in Norway. The French then discovered that Germany had already offered to purchase the entire stock of Norwegian heavy water, indicating that Germany might also be researching an atomic bomb. The French told the Norwegian government of the possible military significance of heavy water. Norway gave the entire stock of 187 litres (41 imp gal; 49 US gal) to a Deuxième Bureau agent, who secretly brought it to France just before Germany invaded Norway in April 1940. On 19 June 1940, following the German invasion of France, it was shipped to England by the Earl of Suffolk and Major Ardale Golding, aboard the steamer Broompark. The heavy water, valued at £22,000, was initially kept at HM Prison Wormwood Scrubs, and was later secretly stored in the library at Windsor Castle. The Paris Group moved to Cambridge, with the exception of Joliot-Curie, who remained in France and became active in the French Resistance.
[EX A]:
What country did heavy water come from?