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.

Given Relationship: 'begin at', Sentence: 'Early 1861 : Some speculate that the Civil War could have begun in Florida instead of Fort Sumter , South Carolina .'
begun

Given Relationship: 'discover', Sentence: 'School children throughout the United States and Canada will tell you that Christopher Columbus discovered America when he was searching for a faster , more efficient route to the riches of India .'
discovered

Given Relationship: 'elect of', Sentence: 'Last night , the Hip-Hop community celebrated , as Barack Obama was elected the first Black president of the United States of America .'

elected