Tower crane and data centre: what they have in common

1. Step 1. Tower crane — has part — Wire rope. The hoist rope.
2. Step 2. Wire rope — is part of — Cable-stayed bridge. Stay cables.
3. Step 3. Cable-stayed bridge — is made of — Concrete. The pylons are concrete.
4. Step 4. Concrete — is material for — Data centre. The building is concrete.

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