With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Stratford, London is in the London Borough of Staten Island.
text_B: Stratford is a district of east London , England , within the London Borough of Newham .. east. East London. London. London. London Borough of Newham. London Borough of Newham. The area was part of the Ancient Parish and subsequent County Borough of West Ham , which became the western half of the modern borough in 1965 .. West Ham. West Ham. County Borough. County Borough of West Ham. modern borough. London Borough of Newham. Historically an agrarian settlement in the county of Essex , Stratford was transformed into an industrial suburb following the introduction of the railway in 1839 .. Essex. Essex. industrial suburb. industrial suburb. The late 20th Century was a period of severe economic decline , eventually reversed by regeneration associated with the 2012 Summer Olympics , for which Stratford 's Queen Elizabeth Olympic Park was the principal venue .. 2012 Summer Olympics. 2012 Summer Olympics. Queen Elizabeth Olympic Park. Queen Elizabeth Olympic Park. Stratford is now East London 's primary retail , cultural and leisure centre .. London. London. East London. East London. It has also become the second most significant -LRB- after Canary Wharf -RRB- business location in the east of the capital .. east. East London. Canary Wharf. Canary Wharf
related.