instruction:
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.
question:
Sentence: 'Paper presented to an International Conference on Street Children and Street Children 's Health in East Africa , in Dar-es-Salaam , Tanzania , April 19th - 21st April 2000 .', Argument/Subject 1: 'paper', Argument/Subject 2: 'international'
answer:
present at


question:
Sentence: 'William Jefferson Clinton was the 42nd president of the United States .', Argument/Subject 1: 'william jefferson clinton', Argument/Subject 2: 'unite state'
answer:
be president of


question:
Sentence: 'In 1609 , Henry Hudson discover the Hudson River and claimed it for Dutchmen .', Argument/Subject 1: 'henry hudson', Argument/Subject 2: 'hudson river'
answer:

discover