314184
He was employed as a barber 's lather boy , and then at Gwalia Tinplate Works from 1912 to 1919 , and then as a tinplate cleaner on the Great Western Railway from 1921 to 1923 .
 organization: Great Western Railway
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: Great Western Railway 
Answer:
 organization: Great Western Railway