With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jack Nicholson has won awards.
text_B: The Women 's 100 metre backstroke competition of the 2016 European Aquatics Championships was held on 18 and 19 May 2016 .. 2016 European Aquatics Championships. 2016 European Aquatics Championships
not_related.