With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Star Trek film series includes a film from 2009.
text_B: Champagne Waltz is one of five movies produced by Paramount in the 1930s featuring Gladys Swarthout , a very popular Metropolitan Opera mezzo-soprano .. Gladys Swarthout. Gladys Swarthout. Paramount. Paramount Pictures. Metropolitan Opera. Metropolitan Opera. The studio was attempting to build on the popularity of Grace Moore , another opera singer , who had also expanded her talents into movies .. Grace Moore. Grace Moore
not_related.