With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Ahmed bin Saeed Al Maktoum became the head of the Expo 2020 .
text_B: His career in the aviation industry began in 1985 when he was appointed President of the Dubai Department of Civil Aviation ( DCA ) – the governing body that oversaw the activities of Dubai International and Dubai Duty Free , among others .
NOT ENOUGH INFO.