With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: By the end of July 2016 , over 1450 Airbus A319 aircraft were in use .
text_B: As of 30 June 2016 , a total of 1,455 Airbus A319 aircraft have been delivered , of which 1,439 are in service .
NOT ENOUGH INFO.