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: 'use in', Sentence: 'Currency manipulation - For the past six years Japan , Korea , and China have used the international currency markets to subsidize their products while simultaneously making American products more expensive .'
Student:
used