| List I | List II | ||
| A | Segment | 1 | A division within the realm of knowledge that encompasses a specific topic and may function as an element of a subject system. |
| B | Subject | 2 | A subject that includes components such as object, action, space, and time |
| C | Subject System | 3 | The complete body of knowledge that has endured to the present. |
| D | Universe of Knowledge | 4 | A subject consists of one or more segments within the universe of knowledge |
1
A-3, B-4, C-2, D-1
2
A-1, B-4, C-2, D-3
3
A-4, B-1, C-2, D-3
4
A-1, B-2, C-3, D-4