Categorize the list into three categories.
Carrots, oranges, apples, spinach
Category 1: Carrots, spinach
Category 2: Oranges, apples
Category 3: None.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Categorize the list into three categories.

### Response:
Category 1: Carrots, spinach
Category 2: Oranges, apples
Category 3: None.