| http://www.w3.org/ns/prov#value | - Unfortunately it became pretty easy to tie a student number to a student, especially in a small class or lab.You could come up with a unique ID for each submission, or if all submissions are done online you do not even need that, it is just a bin of assignments to grade with names removed (they still have a unique ID in the database it is just not exposed to markers).Though I think with essays you ge
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