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? Solve this instance: Given Relationship: 'launch beta of', Sentence: 'Amazon.com has launched a public beta of Amazon MP3 , a digital music store that provides DRM-free downloads of over 2 million songs from 180,000 artists and 20,000 labels .'
Student:
launched