185059
Armstrong held no financial interest in the company until 1864 when he left Government service , and Elswick Ordnance was re-united with the main Armstrong businesses to form Sir W.G. Armstrong & Company .
 person: Armstrong; organization: Elswick Ordnance; person: Armstrong; 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: Armstrong, Elswick Ordnance, Armstrong, Armstrong 
Answer:
 person: Armstrong; organization: Elswick Ordnance; person: Armstrong; person: Armstrong