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George Bishop 's Observatory was an astronomical observatory erected in 1836 by the astronomer George Bishop near his residence at the South Villa of Regent 's Park , London .
 organization: Regent; location: London
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Regent; location: London