This is the processing effect. The text in the middle table represents the attribute of the table content, which is the problem corresponding to the table content.
For this kind of form that needs to be filled, it is obvious that the unfilled places are blank, so the process is as follows:
Extract form information (see 1)-restore the position of the form-judge whether it is not filled in according to whether the form is blank-judge the attributes of the form according to the status of the previous and subsequent forms