<|im_start|>user
How many basketball teams are in NBA?<|im_end|>
<|im_start|>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.<|im_end|>
