You will be given a definition of a task first, then some input of the task.
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.

It is a fictional universe that is the setting of several superhero movies and TV shows made by Marvel Studios , based on characters by Marvel Comics .
Output:
The Marvel Cinematic Universe ( MCU ) is an American media franchise and shared universe centered on a series of superhero films , independently produced by Marvel Studios and based on characters that appear in American comic books published by Marvel Comics .