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.

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

Passage: On his release, Tippett returned to his duties at Morley, where he boosted the college's Purcell tradition by persuading Alfred Deller, the countertenor, to sing several Purcell odes at a  concert on 21 October 1944—the first modern use of a countertenor  in Purcell's music. Tippett formed a fruitful musical friendship with Benjamin Britten and Peter Pears, for whom he wrote the cantata Boyhood's End for tenor and piano. Encouraged by Britten, Tippett made arrangements for the first performance of A Child of Our Time, at London's Adelphi Theatre on 19 March 1944. Goehr conducted the London Philharmonic Orchestra, and Morley's choral forces were augmented by the London Regional Civil Defence Choir. Pears sang the tenor solo part, and other soloists were borrowed from Sadler's Wells Opera. The work was well received by critics and the public, and eventually became one of the most frequently performed large-scale choral works of the post-Second World War period, in Britain and overseas. Tippett's immediate reward was a commission from the BBC for a motet, The Weeping Babe, which became his first broadcast work when it was aired on 24 December 1944. He also began to give regular radio talks on music.In 1946 Tippett organised at Morley the first British performance of Monteverdi's Vespers, adding his own organ Preludio for the occasion. Tippett's compositions in the immediate postwar years included his  First Symphony, performed under Sargent in November 1945, and the String Quartet No. 3, premiered in October 1946 by the Zorian Quartet. His main creative energies were increasingly devoted to his first major opera, The Midsummer Marriage. During the six years from 1946 he composed almost no other music, apart from the Birthday Suite for Prince Charles (1948).
What is the name of the person who boosted the college's Purcell tradition by persuading the countertenor to sing several Purcell odes at a concert on 21 October 1944?

Passage: In the early 1960s, a three-girl "Greek chorus"—Crystal, Ronnette, and Chiffon—introduce the movie, warning the audience that some horror is coming their way ("Prologue: Little Shop of Horrors"). Seymour Krelborn and his colleague, Audrey, work at Mushnik's Flower Shop in a run-down, rough neighborhood in New York City referred to as "Skid Row". They lament that they cannot escape the neighborhood ("Skid Row (Downtown)"). Struggling from a lack of customers, Mr. Mushnik decides to close the store, but Audrey suggests he may have more success by displaying an unusual plant that Seymour owns. Immediately attracting a customer, Seymour explains he bought the plant, which he dubbed "Audrey II", from a Chinese flower shop during a solar eclipse. Attracting business to Mushnik's shop, the plant soon starts to wither. Seymour accidentally pricks his finger, and discovers that Audrey II needs human blood to thrive ("Grow for Me").
Besides the owner, who else works in the store with the man that owns the unusual plant?