With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Pembroke Castle is publicly owned.
text_B: Pembroke Castle -LRB- Castell Penfro -RRB- is a medieval castle in Pembroke , West Wales .. Pembroke. Pembroke, Pembrokeshire. Wales. Wales. medieval. medieval. castle. castle. West Wales. West Wales. The castle , which has been a Grade I listed building since 1951 , underwent a major restoration in the early 20th century .. castle. castle. listed building. listed building. It was the original seat of the Earldom of Pembroke .. Pembroke. Pembroke, Pembrokeshire. seat. Family seat. Earldom of Pembroke. Earl of Pembroke. In 1093 Arnulf of Montgomery built the first castle at the site when he fortified the promontory beside the Pembroke River during the Norman invasion of Wales .. Pembroke. Pembroke, Pembrokeshire. Wales. Wales. Arnulf of Montgomery. Arnulf of Montgomery. castle. castle. Pembroke River. Pembroke River. Norman invasion of Wales. Norman invasion of Wales. A century later this castle was given to William Marshal by Richard I. Marshal , who would become one of the most powerful men in 12th-century Britain , rebuilt Pembroke in stone creating most of the structure that remains today .. Pembroke. Pembroke, Pembrokeshire. William Marshal. William Marshal, 1st Earl of Pembroke. castle. castle. Richard I. Richard I of England. The castle , which is open to the public , is the largest privately owned castle in Wales .. Wales. Wales. castle. castle
related.