You will be given a definition of a task first, then an example. Follow the example to solve a new instance 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.

The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Solution: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Why? The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".

New input: During winter the lake water becomes well mixed , and the lake water is less clear because of tannins and calcium carbonate particles .
Solution:
During winter , the lake becomes well mixed , and recent research indicates that during this phase of the colour cycle , the lake is somewhat murkier due to the redistribution of tannins and calcium carbonate particles throughout the lake .