With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Boot Monument is a memorial for a conflict with Great Britain.
text_B: The National Coastwatch Institution is a voluntary organisation and registered charity providing a visual watch along the UK 's coasts , and is not to be confused with HM Coastguard .. voluntary organisation. voluntary sector. registered charity. registered charity. United Kingdom. HM Coastguard. Her Majesty's Coastguard
not_related.