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The group 's first album , " The ABBA Generation " , consisting solely of ABBA covers reimagined as 1990 s pop songs , was a worldwide success and so were subsequent albums .
 ABBA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 ABBA