Perhaps you make a minor mistake or two. Perhaps you could be clearer or more in-depth. On the whole your work is great, but I can point to a few counter-arguments or implications that you are missing. Fulfills requirements of assignment. Adequate but uninspired writing.
Main points have some sort of support.
You reference concepts and have some arguments. Perhaps your arguments are often unclear. Perhaps you have a few minor misunderstandings, but no major errors or misinterpretations. There are some gaps in your logic at times and perhaps you lack depth in some areas. Does not meet all the assignment requirements.