Racing car and dewar flask: what they have in common

1. Step 1. Racing car — evolved from — Sports car. A specialized racing car.
2. Step 2. Sports car — has part — Internal combustion engine. A powerful internal combustion engine.
3. Step 3. Internal combustion engine — includes — Diesel engine. A diesel is a kind of internal combustion engine.
4. Step 4. Diesel engine — is part of — Tanker. A diesel.
5. Step 5. Tanker — includes — LNG carrier. A tanker.
6. Step 6. LNG carrier — has part — Dewar flask. Insulated tanks.

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