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: 'betray', Sentence: 'Judas had agreed to betray Jesus for the sum of thirty pieces of silver .'
betray

Given Relationship: 'appear in', Sentence: 'The Bible is clear that Balaam was priest of God having a place within the sons of Abraham and to whom the Angel of Yahovah appeared .'
appeared

Given Relationship: 'be center of', Sentence: 'His residence in Florence , Italy , which he named I Tatti , is now the Harvard Center for Renaissance Studies .'
Center