With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Macbeth was first published in the Folio of 1623.
text_B: Ken McNeil is a Canadian lawyer , currently a Distinguished Research Professor Emeritus and formerly the Robarts Professor of Canadian Studies at York University from 1997 to 1998 .. York University. York University
not_related.