Categorize each of the items according to their type
pen, pencil, scissors, hammer
Writing Utensils: pen, pencil

Tools: scissors, hammer
Complete the following task based on the instruction and optional input provided.### Instruction:
Categorize each of the items according to their type

### Input:
pen, pencil, scissors, hammer

### Output:
Writing Utensils: pen, pencil

Tools: scissors, hammer