With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Adi Shankar was born in the 1980's.
text_B: The Park City Main Street Historic District is a historic district that was listed on the National Register of Historic Places in 1979 .. historic district. historic district ( United States ). National Register of Historic Places. National Register of Historic Places. It includes 47 contributing buildings on 13 acre along most of Park City , Utah 's Main Street through its business section , plus part of Heber Avenue .. contributing buildings. contributing buildings. All were built after the fire of June 19 , 1898 .. The buildings include Queen Anne , Mission / Spanish Revival , and Victorian architecture .. Queen Anne. Queen Anne architecture. Mission / Spanish Revival. Mission / Spanish Revival architecture. Victorian. Victorian architecture. The district was listed on the National Register of Historic Places in 1979 .. National Register of Historic Places. National Register of Historic Places. It was argued to be `` the best remaining metal mining town business district in the state of Utah , exhibiting unique historical and architectural qualities . ''
not_related.