Given the task definition and input, reply with output. 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: 'Each year , Norma Jane Duncan Musgrave , generously make an annual fund contribution to the University of Pittsburgh .', Argument/Subject 1: 'duncan', Argument/Subject 2: 'fund'
make contribution to