TASK DEFINITION: Given two noun phrases (arguments) and relationship between them, form a sentence that expresses theses arguments with the given relationship.
PROBLEM: Relationship: 'open in', Argument/Subject 1: 'center', Argument/Subject 2: 'december'

SOLUTION: In December 2007 , Providence Alaska Medical Center opened a new cancer center .

PROBLEM: Relationship: 'be hold in', Argument/Subject 1: 'summit', Argument/Subject 2: 'johannesburg'

SOLUTION: The report will be submitted to the World Summit on Sustainable Development to be held in Johannesburg between Aug. 26 and Sept. 4 , an association official said .

PROBLEM: Relationship: 'win', Argument/Subject 1: 'australium', Argument/Subject 2: 'world cup'

SOLUTION:
Australia then became the only country to have won the World Cup twice .