With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lee Child is Spanish.
text_B: The Aristarchian symbols are the asterisk and the obelus .. asterisk. asterisk. obelus. obelus. They are named after Aristarchus of Samothrace .. Aristarchus of Samothrace. Aristarchus of Samothrace
not_related.