Chinastark/bird_dataset huggingface dataset:
Column: course_id
Name: course id
Data format: integer
Description: unique id number identifying courses
Column: courseLevel
Name: course level
Data format: text
Description: course level
Value description: commonsense evidence:
 Level_300: basic or medium undergraduate courses.
 Level_400: high-level or harder undergraduate course.
 Level_500: professional or master/graduate courses