Sentence:  16 "Mess", make a "Tale", which here is 20 "s". "English", 5 "Tale" make a "Bancal", a weight so called, and 20 "Bancal" make a <WSD>"Catty</WSD>", another weight. 
Meaning of the word marked with <WSD> tags:  A (unit of) weight used in China, generally standardized as half a kilogram.