| original_column_name,column_name,column_description,data_format,value_description | |
| course_id,course id,unique id number identifying courses,integer, | |
| courseLevel,course level,course level,text,"commonsense evidence: | |
| Level_300: basic or medium undergraduate courses. | |
| Level_400: high-level or harder undergraduate course. | |
| Level_500: professional or master/graduate courses" | |