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Members of the Association included the Aluminum Company of America ( Alcoa ) ( Arthur Vining Davis ) , Reynolds Metals Company ( Walter Hunt ) , and United Smelting & Aluminum ( Milton Rosenthal ) .
 organization: Aluminum; organization: Alcoa; organization: Reynolds Metals Company; organization: Aluminum
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Aluminum; organization: Alcoa; organization: Reynolds Metals Company; organization: Aluminum