With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jackie Chan has released an album.
text_B: The British Symphony Orchestra -LRB- BSO -RRB- is a British symphony orchestra founded in 1904 and disbanded in 1940 .. symphony orchestra. symphony orchestra. The BSO was reformed in 2016 as a concert symphony orchestra in the United Kingdom .. symphony orchestra. symphony orchestra. The orchestra works in partnership with the Mozart Symphony Orchestra who are based at Cadogan Hall , London .. London. London. Mozart Symphony Orchestra. Mozart Symphony Orchestra. Cadogan Hall. Cadogan Hall
not_related.