Complex sentence: Doctor Sivana asks for the voice's named and there trapped in a bottle a caterpillar-like creature saids that people call him Mr Mind and that he and Sivana shall be the best of friends.
Split into simpler sentences: Doctor Sivana asks for the voice's name, and discovers a caterpillar-like creature trapped in a bottle. The creature claims that people call him Mr Mind, and makes note that he and Sivana shall be the best of friends.