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An Intergenerational shared site is a program in which children , youth and older adults participate in ongoing services and/or programming concurrently at the same site , and where participants interact during regularly scheduled planned intergenerational activities , as well as through informal encounters .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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