With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Boeing 737s serve markets previously filled by MD-87/MD-95 airliners .
text_B: Many 737s serve markets previously filled only by 707 , 727 , 757 , DC-9 , and MD-87/MD-95 airliners , and the aircraft currently competes primarily with the Airbus A320 family .
SUPPORTS.