57217
Some human structures , such as the Kremlin , are coded signals from the aliens to their ship as to how long it may expect to wait for the repair to take place .
 location: Kremlin
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: Kremlin 
Answer:
 location: Kremlin