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The Intercontinental Manufacturing Company ( IMCO ) was formed in the Dallas , Texas area in 1948 by Harold J. Silver and Robert F. Yonash , initially to fulfill an order from Argentina for tractors .
 Intercontinental Manufacturing, Dallas , Texas, Robert F. Yonash
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Intercontinental Manufacturing, Dallas , Texas, Robert F. Yonash