Cochlear implant and shaduf: what they have in common

1. Step 1. Cochlear implant — is made of — Titanium. The case is titanium.
2. Step 2. Titanium — is material for — Surgical stapler. Titanium staples.
3. Step 3. Surgical stapler — has part — Lever. A driving handle.
4. Step 4. Lever — is used in — Shaduf. A shaduf is a lever with a counterweight.

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