Premise: The means of maintaining the database and the details that it contained had changed as the number of reported incidents at the university had grown--from 3 or 4 a month in 1993 to between 50 and 60 a month in early 1997--and as the database's value as a management tool became more apparent.

Hypothesis: The university had the same number of incidents in 1993 and 1997.
Relation: contradiction