46948
In late 2009 , the triple-member group was renamed F.T. Triple and began working with Choi Min-hwan as Drummer and sub vocalist .
 Choi Min-hwan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Choi Min-hwan