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
What are submersibles for?


assistant
Submersibles are small, hard-sided vehicles that can dive down deep. It has its own power and air supplies. Some parts of the ocean are way too deep for anyone to swim in, even with diving gear. People need submersibles to explore the deepest parts of the ocean.