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

Q: Relationship: 'be part of', Argument/Subject 1: 'tibet', Argument/Subject 2: 'china'

A: Beijing says Tibet is historically part of China , but many Tibetans argue the region was virtually independent for centuries .
****
Q: Relationship: 'be director of', Argument/Subject 1: 'chu', Argument/Subject 2: 'lawrence berkeley national laboratory'

A: Steven Chu is a physicist who shared a Nobel Prize in 1997 and the director of the Lawrence Berkeley National Laboratory .
****
Q: Relationship: 'be staff by', Argument/Subject 1: 'centre', Argument/Subject 2: 'director'

A:
The Delegate from Germany congratulated the Director and the staff of the World Heritage Centre for its excellent work which is becoming ever more demanding due to the increasing success of the World Heritage Convention .
****