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: Nelson is the co-chair of the National Organization for the Reform of Marijuana Laws ( NORML ) advisory board .
Student:
Nelson is a major liberal activist and the co-chair of the advisory board of the National Organization for the Reform of Marijuana Laws ( NORML ) , which is in favor of marijuana legalization .