With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Seven Days in May is Kirk Douglas's memoir.
text_B: Frohsinns-Spenden -LRB- Gifts of Cheerfulness -RRB- , opus 73 , is a waltz composed by Johann Strauss II .. opus. opus number. waltz. waltz. Johann Strauss II. Johann Strauss II. The composition premiered in January 1850 in the Sofienbad-Saal , at a charity ball .. Sofienbad-Saal. Sofienbad-Saal
not_related.