<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Can you tell me about the technology that powers the features of Amazon Alexa?
<|assistant|>
Amazon Alexa is powered by a technology called natural language understanding (NLU). Alexa uses the NLU technology to comprehend voice commands given by the user and identify which action to take in response to the command. NLU also enables Alexa to provide information based on the user's requests. Furthermore, Alexa uses a technology called conversational artificial intelligence (AI) to generate more natural responses and carry on intelligent conversations. Other technologies involved in powering the features of Amazon Alexa include natural language generation (NLG), text-to-speech (TTS), and audio signal processing.