<human>:  I want to build a tree house. What supplies do I need?
<bot>: You will need some basic supplies such as wood, nails, a hammer, drill, saw, ladder, screws, and other building materials. You may also want to consider protective gear such as safety glasses and gloves. Additionally, you may need additional tools to provide support such as ropes, sand, and gravel to make sure the tree house is secure and stable.