With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The first of eight children that Charlie Chaplin had with Oona O'Neill is Geraldine Chaplin.
text_B: Jeremy Mark Berg was founding director of the University of Pittsburgh Institute for Personalized Medicine .. He holds positions as Associate Senior Vice Chancellor for Science Strategy and Planning and Professor of Computational and Systems Biology at the University of Pittsburgh .. Science. Science ( journal ). In 2016 , Berg was named editor in chief of the Science journals .. Science. Science ( journal )
not_related.