Sentence:  The <WSD>Nippers</WSD> program, for children aged five to thirteen, promotes water safety skills and confidence in a safe beach environment. [https://web.archive.org/web/20120321105500/http://sls.com.au/content/nipper-numbers-exceed-60000] 
Meaning of the word marked with <WSD> tags:  A child aged from 5 to 13 in the Australian surf life-saving clubs.