With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: 2,3,7,8-Tetrachlorodibenzodioxin was used as a weapon in the Vietnam War .
text_B: It is the most potent compound of the series and became known as a contaminant in Agent Orange , as a weapon used in the Vietnam War.
SUPPORTS.