semantic network

Described as a “semantic network” that pulls together 15 existing resources including Wikipedia, Wiktionary and Microsoft Terminology, it aims to create a comprehensive, hierarchical root map of not just English but of 271 languages simultaneously, making it the largest lexicon/encyclopedia/thesaurus/reference work on the web.

Vitamins are generally considered healthy so in the semantic network of connections in our brains it would be natural for the buyer to associate Vitaminwater with healthy.