as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
categorize these animals by type.

goldfish, elephant, spider, goose
user
fish: goldfish 
mammal: elephant 
arachnid: spider 
bird: goose
assistant