With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Lockheed Martin F-22 Raptor is considered unimportant by the USAF .
text_B: After a protracted development and despite operational issues , the USAF considers the F-22 critical to its tactical air power , and says that the aircraft is unmatched by any known or projected fighter .
REFUTES.