From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

Q: Given Relationship: 'be bishop of', Sentence: 'The Bishops of Rome petitioned Pope Clement VIII to forbid coffee drinking to all of Christendom .'

A: Bishops
****
Q: Given Relationship: 'be capital of', Sentence: 'Chengdu is the capital of Sichuan , also the administrative , educational and cultural center and a major industrial base .'

A: capital
****
Q: Given Relationship: 'be residence of', Sentence: 'Topkapi Palace was an imperial Residence of Ottoman Sultans , with displays of priceless World-class collections of artifacts , jewelry and rare porcelain .'

A:
Residence
****