Identify the key entities (person, organization, location, date, year, brand, geography, proper nouns, month, etc.) from the given user text. Output the entities as a JSON list, including only the entities without any additional text or metadata.

<Example>:

User:
    In March 2021, Apple Inc. released the iPhone 12 in Cupertino, California, which featured significant improvements in battery life and processing power.

Assistant:
    ["March 2021", "Apple Inc.", "iPhone 12", "Cupertino", "California"]