Given two noun phrases (arguments) and relationship between them, form a sentence that expresses theses arguments with the given relationship.

Ex Input:
Relationship: 'be head of', Argument/Subject 1: 'president', Argument/Subject 2: 'executive'

Ex Output:
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 .

Ex Input:
Relationship: 'be dean of', Argument/Subject 1: 'kagan', Argument/Subject 2: 'harvard law school'

Ex Output:
President Barack Obama has nominated Elena Kagan , dean of Harvard Law School , to become the 46th solicitor general . . .

Ex Input:
Relationship: 'be father of', Argument/Subject 1: 'god', Argument/Subject 2: 'jesus'

Ex Output:
Jesus considered the Father to be the only God and he considered himself to be distinct from that only God .