2138
Weaponry varies by a very wide degree between AFVs – lighter vehicles for infantry carrying , reconnaissance or specialist roles may have only a Cannon or Machine gun ( or no armament at all ) , whereas heavy self propelled artillery will carry large guns , mortars or rocket launchers .
 None
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:
 None