Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Given Relationship: 'make', Sentence: 'Jenny made the announcement that her baby was an alien.'
Solution: made
Reason: The output relationship - made, is a correct verb form of the given relationship - make, and it is also used in the given sentence

Now, solve this instance: Given Relationship: 'be columnist for', Sentence: 'Joining Professor Gewirtz and Center staff in the workshop were American experts on media freedom and tort law , including celebrated New York Times columnist Anthony Lewis , YLS Professor Robert Post , Judge Robert Sweet from the University of Virginia , and Professor Michael Chesterman , Australia 's leading defamation law expert .'
Student:
columnist