With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kevin Durant became the first senior to be named Naismith College Player of the Year.
text_B: The Abercorris quarry -LRB- also known as Cwmodyn -RRB- was a slate quarry worked between the 1860s and the early 1950s .. slate quarry. slate industry. It was located at Corris Uchaf about 5 miles north of Machynlleth , in Gwynedd , north-west Wales .. Corris Uchaf. Corris Uchaf. Machynlleth. Machynlleth. Gwynedd. Gwynedd. Wales. Wales. The quarry was connected to the Corris Railway which carried its products to the Cambrian Railways at Machynlleth for distribution .. Machynlleth. Machynlleth. Corris Railway. Corris Railway. Cambrian Railways. Cambrian Railways
not_related.