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: Geologically, Portland is separated into two areas; the steeply sloping land at its north end called Underhill, and the larger, gently sloping land to the south, called Tophill. Portland stone lies under Tophill; the strata decline at a shallow angle of around 1.5 degrees, from a height of 151 metres (495 ft) near the Verne in the north, to just above sea level at Portland Bill. The geology of Underhill is different to Tophill; Underhill lies on a steep escarpment composed of Portland Sand, lying above a thicker layer of Kimmeridge Clay, which extends to Chesil Beach and Portland Harbour. This Kimmeridge Clay has resulted in a series of landslides, forming West Weares and East Weares.2.4 kilometres (1.5 mi) underneath south Dorset lies a layer of Triassic rock salt, and Portland is one of four locations in the United Kingdom where the salt is thick enough to create stable cavities. Portland Gas applied to excavate 14 caverns to store 1,000,000,000 cubic metres (3.5×1010 cu ft) of natural gas, which is one percent of the UK's total annual demand. It was proposed that the caverns should be connected to the National gas grid at Mappowder via a 37-kilometre (23 mi) pipeline. Plans had it that the surface facilities should be complete to store the first gas in 2011, and the entire cavern space available for storage in winter 2013. As part of the £350 million scheme, the Grade II listed former Old Engine Shed would be converted into a £1.5 million educational centre with a café and an exhibition space about the geology of Portland.
[EX A]: What is the full name of the acronym UK?

[EX Q]: Passage: In late July 1983, Metallica embarked on the two-month Kill 'Em All for One tour with British co-headliners Raven. The tour name melded the titles of the albums the two bands were promoting: Metallica's Kill 'Em All and Raven's All for One, both released on Megaforce. The two groups met in Zazula's home two days before the tour began, and traveled in the same vehicle throughout the tour with five roadies and sound engineer Whitaker. The tour was set to conclude with three shows in San Francisco, thus Hetfield painted "No Life 'til Frisco" on the Winnebago tour bus. The tour had a few poorly attended gigs, such as a performance at the Cheers club in Babylon, New York, attended by some 50 people. After the conclusion of Kill 'Em All for One in early September, Metallica returned to El Cerrito to work on new material. Seven weeks after the tour ended, Metallica booked a number of performances at Bay Area clubs, the first a Halloween gig at the Keystone in Palo Alto. At the Country Club in Reseda, the group debuted "Fight Fire with Fire" and "Creeping Death", along with an early version of "The Call of Ktulu", then titled "When Hell Freezes Over". Three days later, at a gig at The Stone in San Francisco, Metallica premiered "Ride the Lightning", the title track from the upcoming album. In December, Metallica went on a short tour in the Midwest and eastern United States with a three-man road crew: Whitaker, guitar technician John Marshall, and drum technician Dave Marrs. The concert of January 14, 1984 in Boston was canceled because the band's equipment was stolen the night before.In February, Metallica embarked on its first European trek with Twisted Sister, supporting Venom's Seven Dates of Hell tour. The tour was sponsored by Metallica's UK distributor, Music for Nations, who released the "Jump in the Fire" EP for that occasion. The first show was at the Volkshaus in Zurich on February 3. At the Aardschok Festival in Zwolle on February 11, Metallica played in front of 7,000 people, its largest audience at the time. The tour stretched through countries such as Italy, Germany, France, and Belgium, culminating in two sold-out shows at the Marquee Club in London. After concluding the Seven Dates Of Hell tour, Metallica headed to Sweet Silence Studios in Copenhagen to record its sophomore album Ride the Lightning. By the end of the tour, Kill 'Em All had sold 60,000 copies worldwide and Metallica began to gain international recognition.
On June 8, 2013, at the Orion Festival, billed as the fictional band Dehaan, Metallica played the album in its entirety for the first time ever to mark the 30 year anniversary of the album.
[EX A]: What are the specific titles of the two separate albums by Metallica and Raven, respectively, that were melded together to form the name for their co-headlining tour?

[EX Q]: Passage: A man unveils a valuable painting he picked up for $50,000 and is killed. A card with a large black ace (of spades) is put on his chest. Another "Black Ace" victim. The killer sends his victims a Black Ace card, warning them they are to die and then kills them, his way of taunting the police. Neil Broderick, an author, intends writing a book about him and is on his way to see Thornton Drake to get more information about him. Austin Winters is his secretary and Neil met his daughter Martha on the train, on the way to Chicago.
Drake has just received a Black Ace, with the words: "At seven tomorrow night", the time he is to be killed. Two plainclothes cops arrive from police headquarters, having had a call, Clancy and Dugan (both incompetents). Martha suggests that they leave for Drake's Louisiana plantation tomorrow morning and be far away from there at seven tomorrow night. Drake agrees and suggests they all go. On the flight, the lights go off for some seconds and when they come on again, Austin Winters is dead without a mark on him.
At the plantation, Clancy ineptly questions the suspects till Neil points out that they are now in another state, so out of their jurisdiction. Neil goes to another room and makes a phone call, then signals to someone outside. After he finishes his call, the line is cut. Meanwhile one of the pilots has taken off in the plane, leaving the other pilot, Henderson, behind who claims he does not know anything though he was out of the cockpit when Winters was killed.
The coroner finds a letter on the dead man which is to be read if Winters dies. It will reveal the identity of the Black Ace. Clancy starts reading it aloud and unsurprisingly the lights go off and the letter has vanished when the lights are turned on again. People locked in their rooms that night and Neil has a hidden car outside signal to him.
[EX A]:
Who is Neil Broderick writing a book about?