Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Sentence: 'MS-FAST is led by The University of Southern Mississippi working with its Mississippi Research Consortium members : Jackson State University , Mississippi State University , The University of Mississippi and The University of Mississippi Medical Center .', Argument/Subject 1: 'mississippus', Argument/Subject 2: 'state'
be to work