83
Most Viewed 2021 MV by Korean Act # 1 . {@BTS_twt@} " Butter " - 174.7M ( +1 # 2 . On the Ground - 174.6M # 3 . BTS " Film Out " - 125.9M # 4 . In The Morning - 101.8M {{URL}}
 Korean, BTS_twt, Butter, Film Out
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 Korean, BTS_twt, Butter, Film Out