system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
How many basketball teams are in NBA?


assistant
There are 30 teams in NBA, 15 in east and 15 in west. The most recent expand with the Charlotte Bobcats in 2004. There is rumor that there is a possible NBA expansion to 32 teams around 2025.