TASK DEFINITION: Given two noun phrases (arguments) and relationship between them, form a sentence that expresses theses arguments with the given relationship.
PROBLEM: Relationship: 'win', Argument/Subject 1: 'al gore', Argument/Subject 2: 'nobel peace prize'

SOLUTION: Former Vice President Al Gore and the United Nations IPCC won the 2007 Nobel Peace Prize for their work on global climate change .

PROBLEM: Relationship: 'be elect by', Argument/Subject 1: 'chairman', Argument/Subject 2: 'board'

SOLUTION: He joined the Board in 2001 and was elected Chairman of that Board in 2005 .

PROBLEM: Relationship: 'be buy by', Argument/Subject 1: 'wachovium', Argument/Subject 2: 'citigroup'

SOLUTION:
Wachovia is bought by Citigroup .