Sentence:  <WSD>Stevia</WSD> is made from the leaves of a small shrub found largely in South America and China, and has been used by indigenous peoples for hundreds of years. It is considered one of the healthiest sweeteners available, and often used as a tonic for healing wounds. 
Meaning of the word marked with <WSD> tags:  A sweetener, many times sweeter than an equal amount of sugar, extracted from (ver=161102), that can be substituted for sugar for some purposes.