Task: Text Categorization
Input (English): Context: Tripterygium is a genus of plants in the Celastraceae family.T. wilfordii; (Chin. 雷公藤) pinyin: lei gong teng sometimes called Thunder God Vine is used in Traditional Chinese medicine.Tripterygium wilfordii Hook.f. known as Leigongteng (Thunder God Vine) in traditional Chinese medicine has attracted much attention for its applications in relieving autoimmune disorders such as rheumatoid arthritis and systemic lupus erythematosus and for treating cancer.
Question: The document can be classified to which topic? 
Options: 1)Company, 2)Building, 3)MeanOfTransportation, 4)EducationalInstitution, 5)Plant
Output (English): 5