With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Notes on a Scandal was nominated for The Academy Award for Best Actress.
text_B: A constitutional referendum was held in Liechtenstein on 1 July 2012 concerning limiting the extensive veto powers held by the Prince of Liechtenstein .. Liechtenstein. Liechtenstein. Prince of Liechtenstein. Prince of Liechtenstein. The proposals were rejected by 76 % of voters .
not_related.