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: The Norwegian Bratvaag expedition, studying the glaciers and seas of the Svalbard archipelago from the Norwegian sealing vessel Bratvaag of Ålesund, found the remains of the Andrée expedition on 5 August 1930. Kvitøya was usually inaccessible to the sealing or whaling ships of the time, as it is typically surrounded by a wide belt of thick polar ice and often hidden by thick ice fogs. However, summer in 1930 had been particularly warm, and the surrounding sea was practically free of ice. As Kvitøya was known to be a prime hunting ground for walrus and the fogs over the island on that day were comparatively thin, some of the crew of the Bratvaag took this rare opportunity to land on what they called the "inaccessible island".Two of the sealers in search of water, Olav Salen and Karl Tusvick, discovered Andrée's boat near a small stream, frozen under a mound of snow and full of equipment, including a boathook engraved with the words "Andrée's Polar Expedition, 1896". Presented with this hook, the Bratvaag's captain, Peder Eliassen, assigned the crew to search the site together with the expedition members. Among other finds, they uncovered a journal and two skeletons, identified as Andrée's and Strindberg's remains by monograms found on their clothing.The Bratvaag left the island to continue its scheduled hunting and observations, with the intent of coming back later to see if the ice had melted further and uncovered more artifacts. Further discoveries were made by the M/K Isbjørn of Tromsø, a sealing sloop chartered by news reporters to waylay the Bratvaag. Unsuccessful in this, the reporters and the Isbjørn crew made instead for Kvitøya, landing on the island on 5 September in fine weather and finding even less ice than the Bratvaag had. After photographing the area, they searched for and found Frænkel's body, and additional artifacts, including a tin box containing Strindberg's photographic film, his logbook, and maps. The crews of both ships turned over their finds to a scientific commission of the Swedish and Norwegian governments in Tromsø on 2 and 16 September, respectively. The bodies of the three explorers were transported to Stockholm, arriving on 5 October.

SOLUTION: Who  uncovered a journal and two skeletons?

PROBLEM: Passage: The term "Gadget" was a laboratory euphemism for a bomb, from which the laboratory's weapon physics division, "G Division", took its name in August 1944. At that time it did not refer specifically to the Trinity Test device as it had yet to be developed, but once it was, it became the laboratory code name. The Trinity Gadget was officially a Y-1561 device, as was the Fat Man used a few weeks later in the bombing of Nagasaki. The two were very similar, with only minor differences, the most obvious being the absence of fuzing and the external ballistic casing. The bombs were still under development, and small changes continued to be made to the Fat Man design.To keep the design as simple as possible, a near solid spherical core was chosen rather than a hollow one, although calculations showed that a hollow core would be more efficient in its use of plutonium. The core was compressed to prompt super-criticality by the implosion generated by the high explosive lens. This design became known as a "Christy Core" or "Christy pit" after physicist Robert F. Christy, who made the solid pit design a reality after it was initially proposed by Edward Teller. Along with the pit, the whole physics package was also informally nicknamed "Christy['s] Gadget".Of the several allotropes of plutonium, the metallurgists preferred the malleable δ phase. This was stabilized at room temperature by alloying it with gallium. Two equal hemispheres of plutonium-gallium alloy were plated with silver, and designated by serial numbers HS-1 and HS-2. The 6.19-kilogram (13.6 lb) radioactive core generated 15 W of heat, which warmed it up to about 100 to 110 °F (38 to 43 °C), and the silver plating developed blisters that had to be filed down and covered with gold foil; later cores were plated with nickel instead. The Trinity core consisted of just these two hemispheres. Later cores also included a ring with a triangular cross-section to prevent jets forming in the gap between them.

SOLUTION: What is the code name of the device that was developed after it had a code name?

PROBLEM: Passage: The arrival of the Manchester Ship Canal in 1894, and the subsequent development of the Trafford Park industrial estate in the north of the town – the first planned industrial estate in the world – had a substantial effect on Stretford's growth. The population in 1891 was 21,751, but by 1901 it had increased by 40% to 30,436 as people were drawn to the town by the promise of work in the new industries at Trafford Park.During the Second World War Trafford Park was largely turned over to the production of matériel, including the Avro Manchester heavy bomber, and the Rolls-Royce Merlin engines used to power both the Spitfire and the Lancaster. That resulted in Stretford being the target for heavy bombing, particularly during the Manchester Blitz of 1940. On the nights of 22/23 and 23/24 December 1940 alone, 124 incendiaries and 120 high-explosive bombs fell on the town, killing 73 people and injuring many more. Among the buildings damaged or destroyed during the war were Manchester United's Old Trafford football ground, All Saints' Church, St Hilda's Church, and the children's library in King Street. Smoke generators were set up in the north of the town close to Trafford Park in an effort to hide it from enemy aircraft, and 11,900 children were evacuated to safer areas in Lancashire, Cheshire, Derbyshire, and Staffordshire, along with their teachers and supervisors. A memorial to those residents who lost their lives in the bombing was erected in Stretford Cemetery in 1948, over the communal grave of the 17 unidentified people who were killed in the blitz of December 1940.Between 1972 and 1975, what is now a closed B&Q store in Great Stone Road was the 3,000-capacity Hardrock Theatre and Village Discothèque, hosting some of that period's major artists in their prime. Led Zeppelin, David Bowie, Bob Marley, Elton John, Hawkwind, Yes, Chaka Khan, Curved Air and Lou Reed were amongst those who appeared. Tangerine Dream was the last band to perform at the Hardrock, on 19 October 1975. In more recent years, Lancashire Cricket Club's Old Trafford ground, next door, has provided a concert venue for bands such as Oasis, Foo Fighters, The Cure, Radiohead, Coldplay, Arctic Monkeys and Pixies.

SOLUTION:
The population of what had increased by 40% in 1901?