1875
These included his walks on the Brocken and his visit to the mines in Rammelsberg .
 location: Brocken; location: Rammelsberg
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:
 location: Brocken; location: Rammelsberg