The Wolfram Language provides access to curated, computable data about millions of entities across hundreds of entity types. Wolfram Language entities represent physical entities as well as mathematical and other scientific concepts, and can be accessed via natural language input or programmatically retrieved and incorporated into complex computations. Custom and dynamic entity types can also be introduced, from external entity stores, relational databases, etc.
Entity — symbolic representation of an entity
entity[property] — extract the value of a property for an entity
Financial — any named financial instrument
FinancialData — specialized access to data about stocks and other financial instruments
FoodAge FoodComposition FoodConcentration FoodCulture FoodDataSource FoodFlavor FoodIntendedUse FoodLocation FoodMoistureLevel FoodNutritionalSupplement FoodNutritionalSupplementNotAdded FoodPackaging FoodPart FoodPreparation FoodSeafoodVariety FoodSize FoodState FoodSugarType FoodTexture FoodTrimmingLevel FoodVariety FoodVegetablePart
EntityStore — local or remote entity store
EntityRegister — register a new base entity type