With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The United Nations won the Nobel Prize in Physics.
text_B: NOTOC. This is a list of the National Register of Historic Places listings in Leelanau County , Michigan .. National Register of Historic Places. National Register of Historic Places. Leelanau County. Leelanau County, Michigan. Michigan. Michigan. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Leelanau County , Michigan , United States .. National Register of Historic Places. National Register of Historic Places. Leelanau County. Leelanau County, Michigan. Michigan. Michigan. United States. United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below , may be seen in a map .. There are 23 properties and districts listed on the National Register in the county , including 1 National Historic Landmark .. National Historic Landmark. National Historic Landmark
not_related.