With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Glen Campbell is a rock and country music singer.
text_B: Per Johan Gustav Hammar -LRB- born 22 February 1994 -RRB- is a Swedish professional footballer currently playing for Orgryte IS as a defender .. Orgryte IS. Orgryte IS. footballer. association football. defender. Defender ( association football )
not_related.