134959
Opened in March 2008 , the museum commemorates the soldiers who built the tunnels and fought in the Battle of Arras in 1917 .
 location: Arras
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: Arras 
Answer:
 location: Arras