1446
Initially , trains stop in Brussels for about half an hour to allow domestic passengers from Amsterdam and Rotterdam to leave and allow London bound passengers to board .
 location: Brussels; location: Amsterdam; location: Rotterdam; location: London
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: Brussels, Amsterdam, Rotterdam, London 
Answer:
 location: Brussels; location: Amsterdam; location: Rotterdam; location: London