1874
The first attempts at forest conservation in the Harz were centred on the Brocken , and began with a far-sighted nature conservation act over 275 years ago .
 location: Harz; location: Brocken
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: Harz; location: Brocken