Sentence:  <WSD>Chinchillas</WSD> are long-lived rodents that are native to South America, primarily Peru, Argentina, Bolivia, and Chile. The <WSD>chinchilla</WSD> is a hystricomorph (hedgehoglike) rodent closely related to guinea pigs, porcupines, and agoutis (Hrapkiewicz "et al.", 1998). 
Meaning of the word marked with <WSD> tags:  Either of two small, crepuscular rodents of the genus "Chinchilla", native to the Andes, prized for their very soft fur and often kept as pets.