Complex sentence: In a happy daze, Grenouille returns to the tanner's shop where he sleeps, and starts organizing the millions of scents he had gathered in his mental library into thousands of categories, such as fine, coarse, good, bad, fetid, and ambroisal.
Split into simpler sentences: In a happy daze, Grenouille returns to the tanner's shop where he sleeps. He starts organizing the millions of scents he had gathered in his mental library into thousands of categories, such as fine, coarse, good, bad, fetid, and ambroisal.