TASK DEFINITION: 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.
PROBLEM: Sentence: 'The space age began when the Soviet Union launched Sputnik 1 , the first man-made satellite , on 4 October 1957.', Argument/Subject 1: 'soviet union', Argument/Subject 2: 'sputnik'

SOLUTION: launch

PROBLEM: Sentence: 'Prime Minister Geir Haarde has called an election for May and said he 'll step down because of illness .', Argument/Subject 1: 'haarde', Argument/Subject 2: 'may'

SOLUTION: call election for

PROBLEM: Sentence: '1901 - Theodore Roosevelt becomes President of the United States .', Argument/Subject 1: 'theodore roosevelt', Argument/Subject 2: 'unite state'

SOLUTION:
be president of