With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: RB Leipzig is based in the German federal state that is bordered by Brandenburg in Germany.
text_B: Mungo Park Jr. -LRB- 9 January 1877 -- 12 February 1960 -RRB- was a pioneer in South American Golf and golf clubmaking .. Park was also a successful golfer and golf course architect .. He won the Argentine Open three times , including the inaugural championship in 1905 .. Argentine Open. Argentine Open. He was part of the famous Park family from Musselburgh that won a total seven Open Championships in the 19th century .. Musselburgh. Musselburgh
not_related.