【Jason Chen】評論
(A)Tea (Thea) → Leaves(葉)，Caffeine, theophylline (B)Physostigma (Calabar bean) → Seed(種子), Physostigmine(C)Khat (Abyssinian tea) → Leaves(葉)，(-)-Cathionone(D)Coca (Divine plant of the Incas) → Leaves(葉)，Cocaine
【Roy Chen陳昱廷】評論
(A)Tea (B)Physostigma 毒扁豆(C)Khat 巧茶(也考「非典型生物鹼」)(D)Coca(也愛考「水解產物」)Reference：前輩大神