With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Hobbit is a work of fantasy for children.
text_B: Sir Robert de Malberthorp -LRB- d. 1331 / 1332 -RRB- was an English lawyer , and Chief Justice of the King 's Bench in 1329 .. English. England. He was the son and heir of Sir William of Malberthorpe , lord of the manor of Mablethorpe , Lincolnshire , which was located on the site of the present Mablethorpe Hall .
not_related.