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: 'be acquire by', Sentence: 'Google acquired Feedburner in June 2007 .'

SOLUTION: acquired

PROBLEM: Given Relationship: 'discover', Sentence: 'The New World had been "discovered " by Christopher Columbus small fleet of Spanish ships ....writes Stuart King ...'

SOLUTION: "discovered

PROBLEM: Given Relationship: 'invade', Sentence: 'Gut was a teenage nursing student when Germany invaded Poland .'

SOLUTION:
invaded