Group 1 - The article discusses the limited number of pictographs in Chinese characters, with only about two to three hundred that represent tangible objects like nature and animals [1] - The character "马" (horse) is highlighted as a frequently used character with strong compositional ability, having 115 variants in the "Shuowen Jiezi" dictionary, where "马" serves as a semantic component [1] - The evolution of the character "马" is traced from its origins as a pictograph to its increasingly abstract forms since the Shang Dynasty [1] Group 2 - The article describes the detailed depiction of a horse in ancient inscriptions, emphasizing its recognizable features such as upright ears, round eyes, and a long mane, which allows anyone familiar with horses to identify it easily [1]