Semantic relations add an extra dimension allowing you to relate products and product information semantically. Semantic relations are simply references between a product and a supporting product or product information. You can name the relation to add meaning. This is the semantic part.
Relate products and content
Relate products with rich marketing content like information about the manufacturer of a product or the ingredients used in a recipe.
Semantic relation linking long form story with featured products.
Semantic relations linking coffee with farm, bean and coffee shops.