The picture below shows the class emblem of a senior Chinese class. Please write down the constituent elements of the sign and their meanings.
The logo consists of a running man, a book and a circular frame. Runner symbolizes the students' courage, and it is also a word "Wen", which represents the liberal arts class; Books symbolize knowledge and culture, and at the same time, they are like steps, symbolizing that students are constantly climbing on the road of knowledge; The circular frame symbolizes the harmony and unity of the class with the slogan of class collective on it. Test analysis: this question is to interpret logo. To solve this problem, we must first carefully observe the given pattern, see which parts of the picture case are composed, and carefully analyze and actively associate the contents of each part to lay the foundation for understanding its meaning; Secondly, we should pay special attention to the information about the use of this model, such as "liberal arts class", combined with icons to understand; Thirdly, we should be good at mobilizing our own reading accumulation and life experience, and think about symbolic significance from the composition of patterns; Finally, we should use accurate, concise and coherent language to explain the composition and significance of the pattern. When answering, in order, first explain its constituent elements as a whole, and then explain the meaning separately. Test center: the language expression is concise, coherent, appropriate, accurate, vivid and vivid. The ability level is to express and apply e.