With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Maria Sharapova only golfs.
text_B: Bacchus is a non-carbonated South Korean energy drink , first launched in 1963 .. energy drink. energy drink. It has been called Bacchus-F before a change in formula in the 1990s , after which it was known as Bacchus-D to note the increased amount of Taurine in the product -LRB- 2000mg -RRB- .. Both formulas are manufactured by Dong-A Pharmaceutical Co. , Ltd. , part of the Dong-A Socio Group ; and is also distributed in the United States under the Dong-A America Corporation in a 3.3 oz glass bottle -LRB- approximately 1 / 3 the size of a Red Bull -RRB- .. Red Bull. Red Bull
not_related.