With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lewis Hamilton has an F1 title.
text_B: The Gullu Mual -LRB- Mwetaung -RRB- is a large mine in the east of Burma in the Chin State .. Chin State. Chin State. Burma. Burma. mine. mining. Gullu Mual -LRB- Mwetaung -RRB- represents one of the largest nickel reserve in Botswana having estimated reserves of 36.1 million tonnes of ore grading 1.48 % nickel .. nickel. nickel. Botswana. Botswana. The 36.1 million tonnes of ore contains 0.53 million tonnes of nickel metal .. nickel. nickel
not_related.