386426
In 1927 , the LMS purchased 75 ex - Railway Operating Division ROD 2-8-0 s from George Cohen and Armstrong Disposals Corporation , primarily for their tenders , which were used for various ex - LNWR locomotives .
 Railway, Armstrong, LNWR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Railway, Armstrong, LNWR