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

Relationship: 'hold in', Argument/Subject 1: 'conference', Argument/Subject 2: 'cambridge'
Reproductive Health Conference in the 21st Century at Radcliffe Institute at Harvard University held in Cambridge , MA - October 14 - 16 , 2004 .

Relationship: 'walk on', Argument/Subject 1: 'long', Argument/Subject 2: 'beach'
Experience the pleasure of long walks on a sandy white , uncrowded beach .

Relationship: 'agree with', Argument/Subject 1: 'pst', Argument/Subject 2: 'str'

2. PST may agree with STR.