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.

Ex Input:
Given Relationship: 'be capital of', Sentence: 'Santafde Bogot capital of the Republic of Colombia , is the main political , commercial and economical center of the country .'

Ex Output:
capital


Ex Input:
Given Relationship: 'run on', Sentence: 'The Xen Dom0 is running Linux CentOS 5.2 on Intel Xeon CPUs with VT extensions .'

Ex Output:
running


Ex Input:
Given Relationship: 'be law of', Sentence: 'All laws of the United States must comply with the Constitution , and all members of Congress take an oath of office to support the Constitution .'

Ex Output:

laws