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.

[Q]: Given Relationship: 'write', Sentence: 'He reminds us that Luke wrote Acts years after Paul had written his letters , so Acts should be treated ith great caution while learning about Paul !'
[A]: written

[Q]: Given Relationship: 'be president of', Sentence: 'At noon EST , Barack H. Obama became the 44th president of the United States of America .'
[A]: president

[Q]: Given Relationship: 'present at', Sentence: 'Paper presented at Workshop on Economics , IUCN General Assembly , 4-5th February , Costa Rica .'
[A]:
presented