human
What makes it go up?
gpt
Gas, explained Mr. Bobbsey.
human
They put in the big bag some gas, sometimes one kind and sometimes another, just like the gas in your toy balloons. This gas is so very light--it's not even so heavy as air--that it wants to go up into the air, all by itself. And when it is inside a bag the gas takes the bag up into the air with it.
gpt
And the basket too? Doesn't it take the basket?
human
Yes, the basket goes up with the balloon,
gpt
Who goes in the basket?
human
Oh, the man,
gpt
Do any children go in the balloon? called out Flossie.
human
Any boys or girls?
gpt
Oh, no!
human
I'd like a ride in a balloon,