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Santa Coloma is a Barcelona Metro station in Santa Coloma de Gramenet , a municipality of the metropolitan area of Barcelona .
 Santa Coloma, Santa Coloma de Gramenet
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Santa Coloma, Santa Coloma de Gramenet