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Cray was an important donor to what became the Mankato YWCA ; when he and his wife died in 1927 , the house and furnishings were willed to the organization along with an endowment for the upkeep of the building .
 Mankato YWCA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mankato YWCA