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.

Given Relationship: 'be part of', Sentence: 'One such regulated market is in Curacao - a self-governing Antilles island that is part of the Kingdom of Netherlands .'
part

Given Relationship: 'be capital of', Sentence: 'Rome is the capital of Italy and the ruling seat of the Roman Empire and Catholicism .'
capital

Given Relationship: 'be base in', Sentence: 'National Rural Electric Cooperative Association based in Washington , D.C.'

based