With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The director of the pilot episode of The Blacklist was born in 1966.
text_B: A rapid response system -LRB- RRS -RRB- is a tool implemented in hospitals designed to identify and respond to patients with early signs of clinical deterioration on non-intensive care units with the goal of preventing respiratory or cardiac arrest .. respiratory. respiratory arrest. cardiac arrest. cardiac arrest. A RRS consists of two clinical components -LRB- afferent and efferent -RRB- and two organizational components -LRB- process improvement and administrative -RRB- .. afferent. Afferent nerve fiber. efferent. efferent
not_related.