Tidal power station and tank: what they have in common

1. Step 1. Tidal power station — has part — Water turbine. Turbines in the dam.
2. Step 2. Water turbine — is a kind of — Turbine. A kind of turbine.
3. Step 3. Turbine — is part of — Gas turbine. A turbine.
4. Step 4. Gas turbine — is part of — Tank. Some tanks (T-80, Abrams) have a gas turbine engine.

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