With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: An early September 2003 Newsweek article included a rumor by a Taliban source that at a meeting in April 2003 Bin Laden was planning an `` unbelievable `` biological attack , the plans for which had suffered a setback upon the arrest of Khalid Shaikh Mohammed ( `` KSM `` ) .
text_B: The planning happened
entailed.