Teacher:In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Teacher: Now, understand the problem? Solve this instance: He is the guitarist for both Slipknot and Stone Sour .
Student:
He is one of two guitarists for the American heavy metal band Slipknot , and the former lead guitarist for the American alternative metal band Stone Sour .