Group the following items into three categories of your choice.
car, pencil, banana, cat
1. Transportation: car
2. Writing tools: pencil
3. Organic Items: banana, cat.
Complete the following task based on the instruction and optional input provided.### Instruction:
Group the following items into three categories of your choice.

### Input:
car, pencil, banana, cat

### Output:
1. Transportation: car
2. Writing tools: pencil
3. Organic Items: banana, cat.