285246
It is named after a former underground quarry which was part of a network of tunnels used by forces of the British Empire and Commonwealth during the First World War .
 organization: Commonwealth
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: Commonwealth 
Answer:
 organization: Commonwealth