243683
Elswick Ordnance was a major arms developer before and during World War I. The ordnance and ammunition it manufactured for the British Government were stamped EOC , while guns made for export were usually marked " W.G. Armstrong " .
 organization: Elswick Ordnance; person: Armstrong
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: Elswick Ordnance, Armstrong 
Answer:
 organization: Elswick Ordnance; person: Armstrong