With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ronald Reagan disclosed his diagnosis with Alzheimer's disease in 1997.
text_B: Ghangad is a fort situated near 30km from Lonavla-Khandala and 100 km from Pune in Maharashtra state , India .. Lonavla. Lonavla. Khandala. Khandala. Pune. Pune. Maharashtra. Maharashtra. India. India. The fort is at least 300 years old .. Restoration work took place in 2011-12 .
not_related.