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: 'Paper presented at the American Economic Association Annual Meeting and at Kennedy School/CESifo Conference on the Economics of Education , Munich , Germany .', Argument/Subject 1: 'paper', Argument/Subject 2: 'conference'
present to

Sentence: 'Petco Park , the stunning new home of the San Diego Padres , is 3.90 miles or 9 minutes away .', Argument/Subject 1: 'petco park', Argument/Subject 2: 'san diego padre'
be home of

Sentence: 'The ultraconservative mayor of Tehran , Mahmoud Ahmadinejad , was elected president in 2005 in an election that saw the disqualification of over 1,000 candidates by the Guardian Council .', Argument/Subject 1: 'mahmoud ahmadinejad', Argument/Subject 2: 'tehran'

be mayor of