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: 'Thomas Jefferson , third president of The United States , was also an agriculturalist , horticulturist , architect , etymologist , archaeologist , mathematician , cryptographer , surveyor , paleontologist , author , lawyer , inventor , violinist , and the founder of the University of Virginia .', Argument/Subject 1: 'thoma jefferson', Argument/Subject 2: 'unite state'
be president of