The conversation between human and AI assistant.
[|Human|] Classify each of the following as a liquid or solid: water, mailbox, soda, coffee, bush, grass, milk
[|AI|] Water: Liquid
Mailbox: Solid
Soda: Liquid
Coffee: Liquid
Bush: Solid
Grass: Solid
Milk: Liquid
[|Human|] 
Classify each of the following as a liquid or solid: water, mailbox, soda, coffee, bush, grass, milk