Surfboard fin and boiler: what they have in common

1. Step 1. Surfboard fin — is part of — Surfboard. The board’s fin.
2. Step 2. Surfboard — is made of — Fibreglass. Fibreglass.
3. Step 3. Fibreglass — is material for — Wind turbine. Blades made of fibreglass.
4. Step 4. Wind turbine — has part — Electric generator. A generator.
5. Step 5. Electric generator — is part of — Thermal power station. Generators.
6. Step 6. Thermal power station — has part — Boiler. Boilers.

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