With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Daniel Radcliffe appeared in a biographical film.
text_B: , is a suburban district of Shanghai .. Shanghai. Shanghai. district. districts of Shanghai. It has an area of 424.58 sqkm and had a population of 1,905,000 at the time of the 2010 Chinese census .. 2010 Chinese census. 2010 Chinese census
not_related.