What are the different swimming styles? Which one is the fastest and which one the slowest?
There are four main different swimming styles in competitive swimming. These are backstroke, breaststroke, butterfly and crawl.

Crawl is the fastest style, while breaststroke is considered to be the slowest.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What are the different swimming styles? Which one is the fastest and which one the slowest?
### Input: 
### Response: There are four main different swimming styles in competitive swimming. These are backstroke, breaststroke, butterfly and crawl.

Crawl is the fastest style, while breaststroke is considered to be the slowest.