<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
Give me the answer to the following riddle: You’ll find me in Mercury, Earth, Mars and Jupiter, but not in Venus or Neptune. What am I?<|im_end|>
<|im_start|>assistant
The most obvious answer is the letter 'R'. There may also be chemical compounds that are found on the former planets but not on the latter, but this has probably not yet been researched well enough.<|im_end|>
<|im_start|>user
I don't know. What?<|im_end|>
<|im_start|>assistant
The answer is: The word "short".
Here is another one: What goes up and down, but doesn't move an inch?<|im_end|>