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

[Q]: Relationship: 'be city in', Argument/Subject 1: 'plovdiv', Argument/Subject 2: 'bulgarium'
[A]: The University of Plovdiv " Paisii Hilendarski " is located in Plovdiv , which is the second largest city in Bulgaria and the largest administrative , economic , cultural and scientific center in Southern Bulgaria .


[Q]: Relationship: 'be officer of', Argument/Subject 1: 'president', Argument/Subject 2: 'association'
[A]: The Officers of this Association are President , Vice President , Secretary , Treasurer , and such other Officers as the Board may , from time to time by resolution , create from among current Members of the Board .


[Q]: Relationship: 'be head of', Argument/Subject 1: 'governor', Argument/Subject 2: 'executive'
[A]:
The Governor of Maryland heads the executive branch of the government of the U.S. state of Maryland and is commander-in-chief of the state 's military forces .