Category 1: Sun
Category 2: Earth
Category 3: Moon
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Classify the following words into three categories:

### Input:
Sun, Earth, Moon

### Response:
Category 1: Sun
Category 2: Earth
Category 3: Moon
assistant

To classify the given words into three categories, I would assign the following:

1. **Category: Planet**
   - Sun: A planet in our solar system, specifically the star at the center of our solar system.
   - Earth: A planet in our solar system.
   - Moon: A natural satellite that orbits the Earth.

2. **Category: Natural Phenomenon**
   - Sun: A star that emits light and heat.
   - Earth: A planet that supports life.
   - Moon: A natural satellite that orbits the Earth.

3. **Category: Body**
   - Sun: A massive, luminous ball of gas in the universe.
   - Earth: A rocky planet with a solid surface.
   - Moon: A natural satellite that orbits the Earth.