The conversation between human and AI assistant.
[|Human|] What are common swimming strokes?
[|AI|] The most common swimming strokes include the four strokes used in competition: freestyle (sometimes referred to as "the crawl"), breast stroke, back stroke and butterfly. In addition, some people swim using a side stroke or a doggy paddle (which looks a lot like the stroke dogs use when swimming).
[|Human|] 
What are common swimming strokes?