Premise: The Pennacook, also known by the names Penacook, and Pennacock, were a North American people of the Wabanaki Confederacy who primarily inhabited the Merrimack River valley of present-day New Hampshire and Massachusetts, as well as portions of southern Maine. They are also sometimes called the Pawtucket people or the Merrimack people.
Hypothesis: The Pennacook people were also known by five other names, and lived in the valley of a river running through New Hampshire, Massachusetts, and Maine.