红豆相思
      Explanation: Red beans: plant name, also known as Xiang Sizi, the ancients used to symbolize love. Acacia analogy between men and women.
      Usage: The main predicate; as object; analogy between men and women Acacia
      Source: Tang Wangwei "love" poem: "red beans grow in tropical, spring comes Jizhi. May Jun multiple pick, most Acacia this matter."