With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Boyd Holbrook wrote novels such as The Old Man and the Sea.
text_B: Landmark Cases in the Law of Contract -LRB- 2008 -RRB- is a book by Charles Mitchell and Paul Mitchell , which outlines the key cases in English contract law .. Charles Mitchell. Charles Mitchell ( academic ). Paul Mitchell. Paul Mitchell ( law ). English contract law. English contract law
not_related.