Sidecar chassis and submarine: what they have in common

1. Step 1. Sidecar chassis — is part of — Sidecar motorcycle. The mounting to the motorcycle.
2. Step 2. Sidecar motorcycle — evolved from — Motorcycle. A motorcycle with a sidecar.
3. Step 3. Motorcycle — has part — Roller chain. Many motorcycles drive the rear wheel with a roller chain.
4. Step 4. Roller chain — is part of — Combine harvester. Chain drives power the working parts.
5. Step 5. Combine harvester — has part — Diesel engine. Self-propelled combines run on diesels.
6. Step 6. Diesel engine — is part of — Submarine. Diesel-electric submarines.

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