Q: 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: 'Not only is it controversial whether Taiwan should remain as part of the Republic of China , become part of the People 's Republic of China , or become an independent Republic of Taiwan , different groups have different concepts of what the current situation is .'
A:
part