Given the following context:  The yellowhammer is a conspicuous, vocal and formerly common country bird, and has attracted human interest. Yellowham Wood and Yellowham Hill, near Dorchester, both derive their names from the bird. Robbie Burns' poem "The Yellow, Yellow Yorlin'" gets its title from a Scottish name for the yellowhammer, which is given an obvious sexual connotation: I met a pretty maid, an' unto her I said,/ "I wad fain fin' your yellow, yellow yorlin'." More factual descriptions of the bird and its behaviour can be found in John Clare's "The Yellowhammer's Nest" and "The Yellowhammer", whose final lines read: Enid Blyton helped to popularise the bird's song as "little bit of bread and no cheese" in books such as The Ship of Adventure and Five Go Off in a Caravan, and wrote a poem called "The Yellow-hammer". Beethoven's student, Carl Czerny, and biographer Anton Schindler, both suggested that the composer got the idea for the first four notes of his 5th symphony from the yellowhammer's call, although it is more likely that the opening of the 4th Piano Concerto was actually the work in question. Beethoven also used the yellowhammer theme in two piano sonatas, no. 21 in C major (the "Waldstein", Op.53) and No. 23 in F minor (the "Appassionata", Op.57).Olivier Messiaen often used birdsong as an inspiration for his music, and the yellowhammer features in Chronochromie, Catalogue d'oiseaux, La fauvette des jardins and Méditations sur le mystère de la Sainte Trinité, appearing in four movements of the last piece.An old legend links the yellowhammer to the Devil. Its tongue was supposed to bear a drop of his blood, and the intricate pattern on the eggs was said to carry a concealed, possibly evil, message; these satanic associations sometimes led to the persecution of the bird. The unusual appearance of the eggs also led to "scribble lark", an old name for the bird.  answer the following question:  What are the names of the two piano sonatas Beethoven used the yellowhammer theme in?
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Answer: no. 21 in C major


Given the following context:  Sir Robert Eric Mortimer Wheeler (10 September 1890 – 22 July 1976) was a British archaeologist and officer in the British Army. Over the course of his career, he served as Director of both the National Museum of Wales and London Museum, Director-General of the Archaeological Survey of India, and the founder and Honorary Director of the Institute of Archaeology in London, in addition to writing twenty-four books on archaeological subjects. Born in Glasgow to a middle-class family, Wheeler was raised largely in Yorkshire before relocating to London in his teenage years. After studying classics at University College London (UCL), he began working professionally in archaeology, specialising in the Romano-British period. During World War I he volunteered for service in the Royal Artillery, being stationed on the Western Front, where he rose to the rank of major and was awarded the Military Cross. Returning to Britain, he obtained his doctorate from UCL before taking on a position at the National Museum of Wales, first as Keeper of Archaeology and then as Director, during which time he oversaw excavation at the Roman forts of Segontium, Y Gaer, and Isca Augusta with the aid of his first wife, Tessa Wheeler. Influenced by the archaeologist Augustus Pitt Rivers, Wheeler argued that excavation and the recording of stratigraphic context required an increasingly scientific and methodical approach, developing the "Wheeler method". In 1926, he was appointed Keeper of the London Museum; there, he oversaw a reorganisation of the collection, successfully lobbied for increased funding, and began lecturing at UCL. In 1934, he established the Institute of Archaeology as part of the federal University of London, adopting the position of Honorary Director. In this period, he oversaw excavations of the Roman sites at Lydney Park and Verulamium and the Iron Age hill fort of Maiden Castle. During World War II, he re-joined the Armed Forces and rose to the rank of brigadier, serving in the North African Campaign and then the Allied...  answer the following question:  What is the last name of the person who oversaw excavation at the Roman forts of Segontium, Y Gaer, and Isca Augusta while serving as Director of the National Museum of Wales?
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Answer: Wheeler


Given the following context:  Grunge is generally characterized by a sludgy electric guitar sound with a "thick" middle register and rolled-off treble tone and a high level of distortion and fuzz, typically created with small 1970s-style stompbox pedals, with some guitarists chaining several fuzz pedals together and plugging them into a tube amplifier and speaker cabinet. Grunge guitarists use very loud Marshall guitar amplifiers  and some used powerful Mesa-Boogie amplifiers, including Kurt Cobain and Dave Grohl (the latter in early, grunge-oriented Foo Fighters songs ). Grunge has been called the rock genre with the most "lugubrious sound"; the use of heavy distortion and loud amps has been compared to a massive "buildup of sonic fog". or even dismissed as "noise" by one critic. As with metal and punk, a key part of grunge's sound is very distorted power chords played on the electric guitar.Whereas metal guitarists' overdriven sound generally comes from a combination of overdriven amplifiers and distortion pedals, grunge guitarists typically got all of their "dirty" sound from overdrive and fuzz pedals, with the amp just used to make the sound louder. Grunge guitarists tended to use the Fender Twin Reverb and the Fender Champion 100 combo amps (Cobain used both of these amps). The use of pedals by grunge guitarists was a move away from the expensive, studio-grade rackmount effects units used in other rock genres. The positive way that grunge bands viewed stompbox pedals can be seen in Mudhoney's use of the name of two overdrive pedals, the Univox Super-Fuzz and the Big Muff, in the title of their "debut EP Superfuzz Bigmuff".  In the song Mudride, the band's guitars were said to have "growled malevolently" through its "Cro-magnon slog".  answer the following question:  What two brands of amplifiers do grunge guitarists use?
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Answer:
Mesa-Boogie