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.

[Q]: 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.
[A]: What is the code name of the device that was developed after it had a code name?


[Q]: Passage: One of the most persistent and popular stories regarding the Mormon pioneers was about three of the rescuers who helped the pioneers cross Sweetwater River.  The most popular telling, by Solomon Kimball, states:
Three eighteen-year-old boys belonging to the relief party came to the rescue; and to the astonishment of all who saw, carried nearly every member of that ill-fated handcart company across the snow-bound stream. The strain was so terrible, and the exposure so great, that in later years all the boys died from the effects of it. When President Brigham Young heard of this heroic act, he wept like a child, and later declared publicly, "That act alone will ensure C. Allen Huntington, George W. Grant, and David P. Kimball an everlasting salvation in the Celestial Kingdom of God, worlds without end.
This version was quoted by Gordon B. Hinckley, James E. Faust and was previously taught in Sunday School in the LDS Church for both adults and children.Chad Orton notes it would be physically impossible for three boys to carry five hundred people across the river in two hours.  In actuality, the rescue party had several rescuers instead of three, eighteen of which have been positively identified as being at the Sweetwater crossing.  The rescuers brought ten rescue wagons in addition to the wagons the Martin Company had with them. Many survivors wrote about riding the wagons across.  However, because of time constraints, not everyone could ride the wagons. Some were carried, but other survivors wrote that they crossed the river themselves or with the help of people other than the three boys.  The boys mentioned in the story did help some people across, but not "nearly every member" as reported in the mythologized version of the story. While the three boys were among those that helped several across, the ages were wrong. C. Allen Huntington was 24, David P. Kimball was 17, and George W. Grant was 16.  There is no medical evidence that they died from effects of the crossing, and most lived active and relatively long lives.  Outside of Kimball's account, there is no other account of Brigham Young promising everlasting salvation to the rescuers based on a single act. Orton notes that such a promise is inconsistent with church doctrine.  John Thomas notes that Solomon Kimball did not witness the crossing, but relied heavily on other sources, particularly Orson F. Whitney's 1888 account, who also claimed that all of the boys died from the event, even though Huntington was still alive in 1888.
[A]: What are the names of the three eighteen-year-olds who helped the pioneers cross Sweetwater River?


[Q]: Passage: "Three Little Birds" taken from Over the Rainbow, was released as Talbot's first single on 10 June 2008 in the UK, and was released alongside the album in the US on 14 October. Bedi, writing for the Malaysian newspaper The Star, said that "Three Little Birds" was her favourite song on Over the Rainbow.The single peaked at number 3 on the Independent Singles Charts in the United Kingdom, and entered the Billboard Hot Singles Sales chart at number 2, dropping to 3 the next week.It then raised back to number 2, and, on the sixth week, reached number 1. Talbot received attention from the British press because of the single's success, with the Daily Mail and Daily Telegraph attributing her success in America to her appeal to the Christian market, and to the success of her videos on YouTube.Talbot's father, Gavin, spoke about the song reaching number one, saying "When we received the phone call we were driving back from doing a round of radio interviews in London and Connie was asleep in the back of the car. When we told her she just took it in her stride. I just cannot believe that she is number one in America. We are all very proud of her. It is a big achievement – people have just taken a shine to her." He also said it was "a big shock to hear she was number one. It is tremendous."As of November 2008, the single has sold more than 250,000 copies worldwide.The music video for the single Three Little Birds was published on June 9, 2013.A music video for the song was shot in Jamaica in late March/early April 2008.Talbot was quoted as saying that "going to Jamaica was the best thing I've done this year". The video begins with images of Talbot skipping through a garden, which is then replaced with an image of her singing on a beach. She then joins a child whose parents had been arguing and plays with them and others in a field, then dances with them on the beach. The children are then lead to a stage, where Talbot performs as the others sing and play musical instruments. The video closes with Talbot in the garden, skipping away from the camera.
[A]:
What country was the music video for the song that sold more than 250,000 copies worldwide shot in?