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

Relationship: 'be version of', Argument/Subject 1: 'pubm', Argument/Subject 2: 'medline'
Our literature search used the PubMed version of Medline on the internet .

Relationship: 'be bear in', Argument/Subject 1: 'lee', Argument/Subject 2: 'stratford'
Biography of Robert E. Lee Robert E. Lee was born in Stratford Hall , near Montross , Virginia , on January 19 , 1807 .

Relationship: 'look at', Argument/Subject 1: 'buck', Argument/Subject 2: 'chri'

Buck was looking up above Chris head , aiming at the man on the roof .