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 Input:
Passage: Before entering the studio, Metallica collected ideas on "riff tape" recordings of various jam sessions. Hetfield and Ulrich went through the tapes and selected the strongest riffs to assemble into songs. Instruments were recorded separately, with Hetfield playing only rhythm guitar. Rasmussen, with the support of drum roadie Flemming Larsen, taught the basics of timing and beat duration to Ulrich, who had a tendency to increase speed and had little knowledge of rhythm theory. Drums were recorded in an empty warehouse at the back of the studio, which was not soundproof, and caused reverberation. Although four tracks were already arranged, the band members were not used to creating songs in the studio, as they had not done so for Kill 'Em All. "For Whom the Bell Tolls", "Trapped Under Ice" and "Escape" were written from scratch in Copenhagen, and the band put finishing touches on "Fight Fire with Fire", "Ride the Lightning", "Creeping Death", and "The Call of Ktulu", which were already performed live. Lead guitarist Kirk Hammett took the album's name from a passage in Stephen King's novel The Stand. The cover art, displaying an electric chair in the midst of lightning bolts, was conceived before recording began. Metallica initially had sound problems, because its gear was stolen three weeks before the band arrived in Copenhagen. The band members slept in the studio by day as they could not afford a hotel and recorded by night, because the studio was booked by other artists during the daytime. Because the group was looking for a major label deal, several A&R representatives from different labels visited the studio. At first, it seemed that Metallica was going to sign with Bronze Records, but the deal fell through, because Bronze executive Gerry Bron did not appreciate the work done at Sweet Silence Studios, and wanted the US edition to be remixed by engineer Eddie Kramer, and even considered re-recording the album in another studio. Metallica was put off by Bron's failure to share the band's artistic vision and decided to look for another label for the US release, in spite of the fact that Bronze had already advertised Metallica as one of their bands.Metallica had to record quickly because of European shows scheduled 29 days after it entered the studio. Recording finished on March 14, and Megaforce released the album on July 27. Although the original album budget was $20,000, the final expense was above $30,000. Metallica's European label Music for Nations paid the studio costs because Megaforce owner Jon Zazula could not afford them. Metallica was unhappy with the lack of promotion by Megaforce, and decided to part ways with Zazula. Major label Elektra Records employee Michael Alago noticed Metallica at The Stone gig in San Francisco, and invited Elektra's chairman and the head of promotion to see the August show in New York. The performance at Roseland Ballroom, with Anthrax and Metallica opening for Raven, pleased the Elektra staff, and the band was offered a contract the following morning. On September 12, Metallica signed with Elektra, who re-released the album on November 19. Cliff Burnstein and Peter Mensch of Q Prime were concurrently appointed as the band's new managers. Ride the Lightning was the last Metallica album to feature co-writing contributions from former lead guitarist Dave Mustaine, who received credit on the title track and the instrumental "The Call of Ktulu". The album also represented the first time Hammett was given writing credits.

Ex Output:
What is the name of the album that represented the first time Hammett was given writing credits?

Ex Input:
Passage: A tsunami is an unusual form of wave caused by an infrequent powerful event such as an underwater earthquake or landslide, a meteorite impact, a volcanic eruption or a collapse of land into the sea. These events can temporarily lift or lower the surface of the sea in the affected area, usually by a few feet. The potential energy of the displaced seawater is turned into kinetic energy, creating a shallow wave, a tsunami, radiating outwards at a velocity proportional to the square root of the depth of the water and which therefore travels much faster in the open ocean than on a continental shelf. In the deep open sea, tsunamis have wavelengths of around 80 to 300 miles (130 to 480 km), travel at speeds of over 600 miles per hour (970 km/hr) and usually have a height of less than three feet, so they often pass unnoticed at this stage. In contrast, ocean surface waves caused by winds have wavelengths of a few hundred feet, travel at up to 65 miles per hour (105 km/h) and are up to 45 feet (14 metres) high.A trigger event on the continental shelf may cause a local tsunami on the land side and a distant tsunami that travels out across the ocean. The energy of the wave is dissipated only gradually, but is spread out over the wave front, so as the wave radiates away from the source, the front gets longer and the average energy reduces, so distant shores will, on average, be hit by weaker waves. However, as the speed of the wave is controlled by the water depth, it does not travel at the same speed in all directions, and this affects the direction of the wave front - an effect known as refraction - which can focus the strength of the advancing tsunami on some areas and weaken it in others according to undersea topography.
As a tsunami moves into shallower water its speed decreases, its wavelength shortens and its amplitude increases enormously, behaving in the same way as a wind-generated wave in shallow water, but on a vastly greater scale. Either the trough or the crest of a tsunami can arrive at the coast first. In the former case, the sea draws back and leaves subtidal areas close to the shore exposed which provides a useful warning for people on land. When the crest arrives, it does not usually break but rushes inland, flooding all in its path. Much of the destruction may be caused by the flood water draining back into the sea after the tsunami has struck, dragging debris and people with it. Often several tsunami are caused by a single geological event and arrive at intervals of between eight minutes and two hours. The first wave to arrive on shore may not be the biggest or most destructive. Occasionally, a tsunami may transform into a bore, typically in a shallow bay or an estuary.

Ex Output:
What two types of tsunami's can a trigger event on the continental shelf cause?

Ex Input:
Passage: In November 2008, NIST released its final report on the causes of the collapse of 7 World Trade Center. This followed NIST's August 21, 2008, draft report which included a period for public comments, and was followed in 2012 by a peer-reviewed summary in the Journal of Structural Engineering. In its investigation, NIST utilized ANSYS to model events leading up to collapse initiation and LS-DYNA models to simulate the global response to the initiating events. NIST determined that diesel fuel did not play an important role, nor did the structural damage from the collapse of the Twin Towers or the transfer elements (trusses, girders, and cantilever overhangs). The lack of water to fight the fire was an important factor. The fires burned out of control during the afternoon, causing floor beams near column 79 to expand and push a key girder off its seat, triggering the floors to fail around column 79 on Floors 8 to 14. With a loss of lateral support across nine floors, column 79 buckled pulling the east penthouse and nearby columns down with it. With the buckling of these critical columns, the collapse then progressed east-to-west across the core, ultimately overloading the perimeter support, which buckled between Floors 7 and 17, causing the remaining portion of the building above to fall downward as a single unit. The fires, which were fueled by office contents and burned for 7 hours, along with the lack of water, were the key reasons for the collapse. Incidentally, this made the old 7 WTC the only steel skyscraper at the time to have collapsed from fire.When 7 WTC collapsed, debris caused substantial damage and contamination to the Borough of Manhattan Community College's Fiterman Hall building, located adjacent at 30 West Broadway, to the extent that the building was not salvageable. A revised plan called for demolition in 2009 and completion of the new Fiterman Hall in 2012, at a cost of $325 million. The adjacent Verizon Building, an art deco building constructed in 1926, had extensive damage to its east facade from the collapse of 7 World Trade Center, though it was able to be restored at a cost of US$1.4 billion.

Ex Output:
What did a revised plan call for a completion of in 2012?