<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Do you think hydrogen would be a good substitute for helium to fill balloons for a kids birthday party?
<|assistant|>
Yes, hydrogen would be a safe and appropriate substance to fill balloons for a kids birthday party. Hydrogen is lighter than helium, so it can be used to fill balloons without worry of the balloons becoming too heavy. It also emits less heat than helium, making it a safer choice for close proximity use. Since hydrogen is also abundant and inexpensive, it makes an ideal filling material for kids birthday party balloons.