Suspension bridge and knife: what they have in common

1. Step 1. Suspension bridge — is a kind of — Bridge. A bridge.
2. Step 2. Bridge — includes — Drawbridge. A bridge.
3. Step 3. Drawbridge — has part — Windlass. Raised with a windlass.
4. Step 4. Windlass — uses — Crank. The handle of a windlass is a crank.
5. Step 5. Crank — is part of — Meat grinder. A handle.
6. Step 6. Meat grinder — has part — Knife. A cross-shaped blade.

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