2502
White used the popular Cockshutt brand name until 1977 , although no Cockshutt tractors were made after 1961 .
 Cockshutt, Cockshutt
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cockshutt, Cockshutt