With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Montreal is a city.
text_B: Bupa -LRB- pronounced -LSB-  /  buːpə  /  -RSB- -RRB- is an international healthcare group , with its origins and headquarters in the United Kingdom but now serving 32 million customers in 190 countries .. United Kingdom. United Kingdom. healthcare. healthcare. It is a not-for-profit private healthcare company , as opposed to the UK 's National Health Service -LRB- NHS -RRB- , which is a tax-funded healthcare system .. healthcare. healthcare. not-for-profit. not-for-profit. private healthcare. private healthcare. National Health Service. National Health Service. tax-funded healthcare. tax-funded healthcare
not_related.