With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: A senior dealer with Warburg Securities noted British Gas , the most active blue - chip stock at 20 million shares traded , was affected by the political implications of Mr. Lawson 's departure and Mrs. Thatcher 's cabinet shuffle .
text_B: The noting did not happen
not-entailed.