The conversation between human and AI assistant.
[|Human|] According to the passage below, what is Reinforcement Learning?
[|AI|] In machine learning, reinforcement learning (RL) is a domain concerned with how intelligent agents respond to maximize their total rewards. Alongside supervised and unsupervised learning, it is one of 3 types of machine learning. Unlike supervised learning, RL does not require labeled data.
[|Human|] 
According to the passage below, what is Reinforcement Learning?