11.  Rain water, river water and well water are composed of fresh water.

12.  There are some sources such as rain, river water and well water.

13.  For example, we can use rain water, stream water, well water, and so on.

14.  The fresh water includes the rain, the river, the well water, and so on.

15.  It has many sources, for example rainwate , riverwater , well water and so forth.

16.  It's including rain, river water, well water and so on.