Complex sentence: The three ponds and their connector ponds are together, and the Lake Cochituate Watershed, part of the Sudbury River Watershed encompasses in Natick, Wayland, Framingham, Ashland, and Sherborn.
Split into simpler sentences: The three ponds and their connector ponds are together. The Lake Cochituate Watershed, part of the Sudbury River Watershed encompasses in Natick, Wayland, Framingham, Ashland, and Sherborn.