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The song begins with Chris Martin singing softly to a piano accompaniment before morphing into an uplifting arrangement featuring drums , piano , chiming guitars , and choir recorded in an art gallery in Barcelona .
 Chris Martin, Barcelona
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chris Martin, Barcelona