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: 'discover', Sentence: 'They were all established in Polynesia before Columbus discovered America , and hence could not have been introduced by later Spanish vessels .'

SOLUTION: discovered

PROBLEM: Given Relationship: 'come from', Sentence: 'Joseph interpretation of this dream came from God , not his own wisdom .'

SOLUTION: from

PROBLEM: Given Relationship: 'be president of', Sentence: '1800 ) , a Barb , was sent to the President of the United States , Thomas Jefferson , by the Bey of Tunis in 1806 .'

SOLUTION:
President