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The schools merged into the former Westwood Elementary School facility in 2007 , and a brand new Cottonwood Elementary School building opened in January 2009 .
 Elementary, Cottonwood Elementary
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Elementary, Cottonwood Elementary