With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Iraq was invaded in May 2003.
text_B: Saint-Agathon is a commune in the Cotes-d'Armor department of Brittany in northwestern France .. commune. Communes of France. Cotes-d'Armor. Cotes-d'Armor. department. Departments of France. Brittany. Brittany ( administrative region ). France. France
not_related.