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.
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Question: Given Relationship: 'be focus of', Sentence: 'The Guttmacher Institute , a nonprofit research group focusing on sexual and reproductive health , recently analyzed data on abortions from 1979 to 2004 and found the number of teens having abortions has declined significantly .'

Answer: focusing

Question: Given Relationship: 'be run against', Sentence: 'But I bet McCain will make the run against Clinton , or less likely Obama , and he will win .'

Answer: against

Question: 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 .'

Answer:
laws