With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mary-Louise Park appeared in The West Wing and other shows.
text_B: A hibernoma is a benign neoplasm of vestigial brown fat .. benign neoplasm. benign neoplasm. brown fat. brown fat. The term was originally used by Gery in 1914 .
not_related.