<|im_start|>user
Why is "The quick brown fox jumps over the lazy dog" used so often to show fonts?<|im_end|>
<|im_start|>assistant
"The quick brown fox jumps over the lazy dog" contains all the letters in the English alphabet in a complete sentence. By showing that sentence in a particular font style, you see all the letters, and also see how it displays a particular sentence.<|im_end|>
