You are building a Language Understanding model for an e-commerce platform.

An ML entity can be composed of smaller sub-entities, each of which can have its own properties. For example, Address could have the following structure:

Address: 4567 Main Street, NY, 98052, USA

Building Number: 4567

Street Name: Main Street

State: NY

Zip Code: 98052

Country: USA

https://docs.microsoft.com/en-us/azure/cognitive-services/luis/luis-concept-entity-types