With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Wyatt Earp was a person in criminal law enforcement.
text_B: A constable is a person holding a particular office , most commonly in criminal law enforcement .. law enforcement. Police. The office of constable can vary significantly in different jurisdictions .. A constable is commonly the rank of an officer within the police .. police. police. Other persons may be granted powers of a constable without holding the title of constable .
related.