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Critical reception " Welcome to Heartbreak " was met by positive reviews from music critics , many of whom cited it , along with " Love Lockdown " and " Heartless " as one of the highlights of 808s & Heartbreak .
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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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