TASK DEFINITION: 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.
PROBLEM: Given Relationship: 'open', Sentence: 'Registration will open on February 1st , 2009 at 00:01 MA time and will close on February 10th , 2009 at 23 :59 MA time .'

SOLUTION: open

PROBLEM: Given Relationship: 'buy', Sentence: 'YE0EHMVE Tussionex xanax buy overnight online tramadol .'

SOLUTION: buy

PROBLEM: Given Relationship: 'be neighborhood in', Sentence: 'For April 2008 , the average home selling price in the San Francisco neighborhood of Potrero Hill was $ 681,333 .'

SOLUTION:
neighborhood