With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Buckingham Palace is located in the UK.
text_B: The Brown-Davis-Frost Farm is a historic farm property at 17 Whitney Street in Jefferson , a village of Holden , Massachusetts .. Jefferson. Jefferson, Massachusetts. It has a history dating to the 18th century , and includes one Holden 's oldest brick houses .. The property was listed on the National Register of Historic Places in 1995 .. National Register of Historic Places. National Register of Historic Places
not_related.