system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Classify each of the following as safe or unsafe to eat for a human: hamburger, metal plate, iPhone, onion, tree, potato chip, candle, ice cream, backpack, sweater, boiled egg.


assistant
Safe to eat: hamburger, onion, potato chip, ice cream, boiled egg
Unsafe to eat: metal plate, iPhone, tree, candle, backpack, sweater