original_column_name,column_name,column_description,data_format,value_description
course_id,course id,the id of courses,integer,
student_id,student id,the id of students,integer,
grade,,the grades that the students acquire in this course,text,"commonsense evidence:
• A: excellent -- 4
• B: good -- 3
• C: fair -- 2
• D: poorly pass -- 1
• null or empty: this student fails to pass this course
• gpa of students for this semester = sum (credits x grade) / sum (credits)"
sat,satisfying degree,student satisfaction with the course,integer,