With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: William `` Billy '' Costigan is an undercover state trooper in the movie , The Departed .
text_B: Simultaneously , the police assign undercover state trooper William `` Billy '' Costigan ( Leonardo DiCaprio ) to infiltrate Costello 's crew .
SUPPORTS.