With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Robert J. O'Neill was a part of the Royal Navy .
text_B: A former U.S. Navy SEAL and special warfare operator , O'Neill is best known for claiming to have fired the head shots that killed Osama bin Laden during the raid on his Abbottabad compound on May 1 , 2011 .
REFUTES.