Sentence:  The solution is to use ice-fishing shacks, called <WSD>shanties</WSD> on Champlain. Every winter, veritable <WSD>shanty</WSD> towns spring up as safe ice develops, and their snug occupants harvest fresh meals of perch, pike, walleye, salmon, trout, and smelt without first being flash-frozen themselves. 
Meaning of the word marked with <WSD> tags:  A roughly-built hut or cabin.