Given two noun phrases (arguments) and relationship between them, form a sentence that expresses theses arguments with the given relationship.
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Question: Relationship: 'be head of', Argument/Subject 1: 'president', Argument/Subject 2: 'executive'

Answer: The service has been dubbed Derivatives Collateral Net and automatically aggregates and nets the overall collateral obligations of its participants , explains Art Certosimo , executive vice president and head of Broker-Dealer Services at the bank .


Question: Relationship: 'be provide by', Argument/Subject 1: 'fund', Argument/Subject 2: 'national institute of health'

Answer: Funding was provided by the U-M Department of Dermatology Cosmetic Research Fund , the Babcock Research Endowment at U-M and grants from the National Institutes of Health .........


Question: Relationship: 'be region of', Argument/Subject 1: 'lazio', Argument/Subject 2: 'italy'

Answer:
Lazio is the region of Italy that surrounds Rome .