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As an example , Air Products & Chemicals , in Trexlertown , installed and maintains a 15-acre solar farm which generates more than half the required electricity for their corporate headquarters , saving an estimated $ 250,000 per year in utility costs .
 Air Products & Chemicals, Trexlertown
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Air Products & Chemicals, Trexlertown