Original sentence: The most famous example of subject-specific ranking being dramatically different from the overall ranking is probably in history, where Oxford Brookes, the former polytechnic, gained a higher research rating than the University of Oxford, or modern languages, where Middlesex University, another former polytechnic, gained a higher rating than Oxford or Cambridge in the Guardian 2004 university league tables
Edited sentence: The most famous example of subject-specific ranking being dramatically different from the overall ranking is probably in history, where Oxford Brookes, the former polytechnic, gained a higher research rating than the elite University of Oxford, or modern languages, where Middlesex University, another former polytechnic, gained a higher rating than Oxford or Cambridge in the Guardian 2004 university league tables