With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Spider-Man 3 is a Canadian film.
text_B: Mairwa -LRB- Vidhan Sabha constituency -RRB- was an assembly constituency in Siwan district in the Indian state of Bihar .. assembly. Vidhan Sabha. Siwan district. Siwan district. state. States and territories of India. Bihar. Bihar. It was reserved for scheduled castes .. scheduled castes. Scheduled castes and scheduled tribes
not_related.