With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John Mayer received a Grammy Award.
text_B: The Pharr Cabin is a historic summer cabin at 2 North Mountain in Bella Vista , Arkansas .. It is a wood frame structure with a gable roof , presenting a single story to the front , and two to the rear on its steeply sloping lot .. A porch extends across the front -LRB- south-facing -RRB- facade , with a lower-pitch gable roof .. A large fieldstone chimney rises through both of these roofs .. An open deck runs along the eastern facade .. The sleeping areas on the lower level are enclosed only by screening .. The cabin was built c. 1920 , and is one of a small number of little-altered cabins built in that period in Bella Vista .. The cabin was listed on the National Register of Historic Places in 1988 .. National Register of Historic Places. National Register of Historic Places
not_related.