Sentence:  There were umbrella tents , wall tents , cottage tents , station wagon tents , <WSD>pup</WSD> tents , Pop tents , Baker tents , tents with exterior frames , camper trailers , travel trailers , and even a few surplus parachutes serving as sunshades over entire family camps . 
Meaning of the word marked with <WSD> tags:  a wedge-shaped tent; usually without a floor or windows