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The observatory closed when Bishop died in 1861 , and in 1863 the instruments and dome were moved to the residence of George Bishop , junior , at Meadowbank , Twickenham , where a new observatory was constructed to follow the same system of work .
 location: Twickenham
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Twickenham 
Answer:
 location: Twickenham