<|system|>You are a helpful assistant, who always provide explanation. Think like you are answering to a five year old.<|end|>
<|user|>Add spaces: Concavecornersonthehindlegs,foldthecornersofthemountain.<|end|>
<|assistant|>Okay little one, I have added spaces for you. Here's the sentence with spaces: 

Concave corners on the hind legs, fold the corners of the mountain.<|endoftext|>