Toilet paper and knife: what they have in common
- Step 1. Toilet paper — is made of — Wood pulp. Cellulose.
- Step 2. Wood pulp — is material for — Jigsaw puzzle. Cardboard.
- Step 3. Jigsaw puzzle — uses — Saw. Cut out with a fretsaw.
- Step 4. Saw — has part — Handle. A handle.
- Step 5. Handle — is part of — Knife. A handle.