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.

Example Input: Given Relationship: 'invade', Sentence: 'When Saddam Hussein invaded Kuwait and the US-led international coalition quickly and soundly defeated the Iraqi military , sending them back to Iraq , Bush decided not to pursue them into Iraq , reasoning that our military could find itself stuck in a quagmire much like Vietnam .'
Example Output: invaded

Example Input: Given Relationship: 'lead', Sentence: 'A Time Magazine poll on Wednesday saw Obama leading McCain by 17 points with women , 55 percent to 38 percent .'
Example Output: leading

Example Input: Given Relationship: 'be head by', Sentence: '3. The Executive Director.The Executive Director will serve as the head of the Secretariat , which will be housed at a U.S. institution of higher learning for a minimum of five years .'
Example Output:
head