Bat saw something brown.
He went to tell Cow.
"I saw something brown," said Bat.
"Is it a hat?" said Cow.
"It is not a hat," said Bat.
He went to Pig.
"I saw something brown and hard," said Bat.
"It's not a hat."
"Is it a box?" said Pig.
"A box is brown and hard."
"It is not a box," said Bat.
Bat went to Cat.
"I saw something in the barn," said Bat.
"It is brown and hard and small.
It is not a hat or a box."
"Is it a rock?" said Cat.
"A rock is brown and hard.
A rock can be small too," Cat said.
"It is not a rock," said Bat.
Bat went back to the barn.
What was this thing?