With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: WeChat consists of a payment service.
text_B: Ashford West railway station was the terminus of the Maidstone Line from 1884 to 1898 .. Maidstone Line. Maidstone Line. It was built by the London , Chatham and Dover Railway .. On the formation of the South Eastern and Chatham Railway , passenger services were transferred to the former South Eastern Railway 's Ashford station .. South Eastern and Chatham Railway. South Eastern and Chatham Railway. Ashford station. Ashford International railway station
not_related.