With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: The band Exo was formed before 2012 .
text_B: Exo was formed by the Korean entertainment company SM Entertainment in 2012 , and formerly consisted of twelve members separated into two sub-groups , Exo-K and Exo-M , releasing the same music simultaneously in both Korean and Mandarin in South Korea and China , respectively .
REFUTES.