Truss bridge and needle: what they have in common

1. Step 1. Truss bridge — has part — Truss. Trusses.
2. Step 2. Truss — is part of — Eiffel Tower. Lattice trusses.
3. Step 3. Eiffel Tower — has part — Rivet. 2.5 million rivets.
4. Step 4. Rivet — is part of — Jeans. Copper rivets on the pockets.
5. Step 5. Jeans — is a kind of — Trousers. Trousers.
6. Step 6. Trousers — uses — Needle. Trousers were sewn with a needle.

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