Sentence:  Mr Yunupingu was referred to the clinic where I was working at that time, Northside Clinic, for treatment of his alcohol problem. I think he described drinking between one and four <WSD>cartons</WSD> every single day - it's quite a phenomenal amount. 
Meaning of the word marked with <WSD> tags:  A cardboard box that holds (usually 24) beer bottles or cans.