Core Marketing Concepts include 1) identifying the needs, wants, and demands of consumers, 2) developing the products that satisfy the needs, wants, and demands of consumers in terms of value and quality, 3) exchanging transactions and relationships to obtain a desired product from someone by offering something in return, which happens at market(s). A market is a set of actual and potential buyers who might make transactions with a seller.

What is a good product that uses the 5 core marketing concepts and how does it use each concept?