(Q).
Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Carapari River -  The Carapari River is a river of Argentina.
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Natural Place


(Q).
Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. John Watts (jockey) -  John Jack Watts was a British flat-race jockey. In a career that lasted from 1880 until 1900 he rode the winners of 19 Classics. He was noted for his quiet and unspectacular style and undemonstrative personality. On his retirement from riding he became a trainer but died two years later.
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Athlete


(Q).
Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. HMS Elfin (1933) -  HMS Elfin (pennant number T25) was a torpedo recovery vessel built for the Royal Navy. She was built by J. Samuel White & Company East Cowes Isle of Wight was launched on 20 November 1933 and commissioned on 16 January 1934. She was builder's number 1754. Her home port was the Navy's torpedo trials establishment HMS Vernon and she was based at Portland. A sistership Redwing was constructed under builder's number 1753 and was stationed at HMS Defiance Devonport.
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Mean Of Transportation