Classify each item from the given list as living or nonliving.
- Trees 
- The sun 
- The wind 
- Humans
Living:
- Trees
- Humans

Nonliving:
- The sun
- The wind
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify each item from the given list as living or nonliving.

### Input:
- Trees 
- The sun 
- The wind 
- Humans

### Output:
Living:
- Trees
- Humans

Nonliving:
- The sun
- The wind