With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: The September 11 attacks were carried out by 20 members of al-Qaeda .
text_B: Four passenger airliners operated by two major U.S. passenger air carriers , United Airlines and American Airlines , all of which departed from airports in the northeastern United States bound for California , were hijacked by 20 al-Qaeda terrorists .
SUPPORTS.