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 adds that the show 's popularity produced an American audience for musical theatre , and that the show has served as a model of the musical ever since .
Student:
He adds that its " unprecedented ... popularity fostered an American audience for musical theatre , while the show itself became a model for form , content , and even intention of ... musicals ever since , especially socially relevant musicals . "