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Originally the park was the research field of Hakgala Botanical Garden , the park was there after established by planting an Oak tree by a German Princes who was visiting Nuwara Eliya .
 location: Nuwara Eliya
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: Nuwara Eliya 
Answer:
 location: Nuwara Eliya