Electronic ink and shipping container: what they have in common

1. Step 1. Electronic ink — is made of — Titanium. The white particles are titanium dioxide.
2. Step 2. Titanium — is material for — Implantable defibrillator. The case is titanium.
3. Step 3. Implantable defibrillator — evolved from — Defibrillator. An implantable one.
4. Step 4. Defibrillator — is part of — Ambulance. A defibrillator.
5. Step 5. Ambulance — evolved from — Truck. A special-purpose vehicle.
6. Step 6. Truck — uses — Shipping container. A container moves from ship to truck without being unloaded.

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