Human: Write a detailed description of a cheerful scene outside a forest with a tree, branches, leaves, and birdsong. Assistant: 
The trunk of this enormous tree is hollow, providing the House with a huge hall of living wood. Natural knotholes and other openings in the trunk allow light to enter the hall, while layers of carefully arranged branches and bright autumn-colored leaves keep out the weather. Birdsong fills the air, giving the hall a cheerful atmosphere. A staircase spirals up around the inside of the tree.