input question: Given the following context:  Messiaen's next work was the large-scale La Transfiguration de Notre Seigneur Jésus-Christ. The composition occupied him from 1965 to 1969 and the musicians employed include a 100-voice ten-part choir, seven solo instruments and large orchestra. Its fourteen movements are a meditation on the story of Christ's Transfiguration. Shortly after its completion, Messiaen received a commission from Alice Tully for a work to celebrate the U.S. bicentennial.  He arranged a visit to the US in spring 1972, and was inspired by Bryce Canyon in Utah, where he observed the canyon's distinctive colours and birdsong. The twelve-movement orchestral piece Des canyons aux étoiles... was the result, first performed in 1974 in New York.In 1971, he was asked to compose a piece for the Paris Opéra. While reluctant to undertake such a major project, he was persuaded in 1975 to accept the commission and began work on his Saint-François d'Assise. The composition was intensive (he also wrote his own libretto) and occupied him from 1975 to 1979; the orchestration was carried out from 1979 until 1983. Messiaen preferred to describe the final work as a "spectacle" rather than an opera. It was first performed in 1983. Some commentators at the time thought that the opera would be his valediction (at times Messiaen himself believed so), but he continued to compose. In 1984 he published a major collection of organ pieces, Livre du Saint Sacrement; other works include birdsong pieces for solo piano, and works for piano with orchestra.In the summer of 1978, Messiaen retired from teaching at the Conservatoire. He was promoted to the highest rank of the Légion d'honneur, the Grand-Croix, in 1987. An operation prevented his participation in the celebration of his 70th birthday in 1978, but in 1988 tributes for Messiaen's 80th included a complete performance in London's Royal Festival Hall of St. François, which the composer attended, and Erato's publication of a seventeen-CD collection of Messiaen's music including a disc of the composer in...  answer the following question:  What is the title of the composition that was premiered by the dedicatees in September 1994????
output answer: Concert à quatre

Given the following context:  The first live performance of the Ray Davies Quartet, the band that would become the Kinks, was at a dance for their school, William Grimshaw, in 1962. The band performed under several names between 1962 and 1963—the Pete Quaife Band, the Bo-Weevils, the Ramrods, and the Ravens—before settling on the Kinks in early 1964. Ray has stated that a performance at Hornsey Town Hall on Valentine's Day 1963 was when the band were truly born. The Kinks made their first tour of Australia and New Zealand in January 1965 as part of a "package" bill that included Manfred Mann and the Honeycombs. They performed and toured relentlessly, headlining package tours throughout 1965 with performers such as the Yardbirds and Mickey Finn. Tensions began to emerge within the band, expressed in incidents such as the on-stage fight between drummer Mick Avory and Dave Davies at The Capitol Theatre, Cardiff, Wales on 19 May. After finishing the first song, "You Really Got Me", Davies insulted Avory and kicked over his drum set. Avory responded by hitting Davies with his hi-hat stand, rendering him unconscious, before fleeing from the scene, fearing that he had killed his bandmate. Davies was taken to Cardiff Royal Infirmary, where he received 16 stitches to his head. To placate police, Avory later claimed that it was part of a new act in which the band members would hurl their instruments at each other. Following their summer 1965 American tour, the American Federation of Musicians refused permits for the group to appear in concerts in the United States for the next four years, possibly due to their rowdy on-stage behaviour.In April 1969 Davies helped negotiate an end to the American Federation of Musician ban on the group, which allowed plans for a North American tour. However, over the next few years, Davies went into a state of depression, not helped by his collapsing marriage, culminating in his onstage announcement that he was "sick of it all" at a gig in White City Stadium in 1973. A review of the concert published in Melody Maker...  answer the following question:  What is the full name of the person who, according to a review in Melody Marker, "stood at The White City and swore that he was  'F...... [sic] sick of the whole thing'"?
----
Answer: Dave Davies

Problem: Given the question: Given the following context:  Big Butte Creek drains approximately 245 square miles (635 km2) of southern Oregon. Elevations range from 1,562 feet (476.1 m) at the creek's mouth to 9,495 feet (2,894 m) at the summit of Mount McLoughlin, with an average of 3,528 feet (1,075 m). About 56 percent is federally owned by the Bureau of Land Management and the United States Forest Service, 44 percent is privately owned, and a small fraction belongs to the City of Medford.The Big Butte Creek watershed experiences a Mediterranean climate. Temperatures range from 10 °F (−12 °C) in the winter to 100 °F (38 °C) in the summer. Precipitation averages between 35 and 80 inches (890 and 2,000 mm) annually. Most precipitation occurs between November and March. Nine percent of the watershed's surface runoff is collected from rain, 35 percent from rain on snow, and 56 percent from snow. The watershed contains the largest groundwater source in the entire Rogue River basin; one major outlet is at Big Butte Springs.The watershed is split into two geographic regions: the High Cascades and the Western Cascades, both volcanic in origin. The Western Cascades compose the western two thirds of the watershed. This region is highly eroded, being between 17 and 38 million years old. Its unstable slopes are primarily made of pyroclastic rock. Due to the rock's high ability to absorb moisture, earthflows are common. The High Cascades are much younger, around three to seven million years old. Mount McLoughlin is the most prominent High Cascade volcano in the watershed, last erupting between 20,000 and 15,000 years ago. Basalt and andesite are the most common rock types in this region.Nearby watersheds include Little Butte Creek to the south, small Klamath River tributaries such as Fourmile Creek to the east, the South Fork Rogue River to the east and north, and minor tributaries of the Rogue River including Reese and Indian creeks to the west.  answer the following question:  What type of rock has a high ability to absorb moisture?
++++++++++++++++++++++++++++++++
The answer is:
pyroclastic