knowledge/ understanding
1. never exhibit any understanding of central debates/issues as if never be in touch with the topic/or even philosophy
2. work identified with certain philosophical debates/topics in philosophy, show only no genuine understanding
3. indication of obvious misunderstanding of basic ideas, though enough understanding to engage with the topic
4. reasonable understanding, some insignificant misunderstanding, can relate, underline significance
5. only suspected misunderstanding, good understanding of suggested materials
6. faultless exposition, excellent comprehension, show excellent understanding of the topic and around