Knit lining and elevator: what they have in common

1. Step 1. Knit lining — is part of — Wellington boots. A lining.
2. Step 2. Wellington boots — is a kind of — Footwear. Footwear.
3. Step 3. Footwear — is made of — Plant fibre. The oldest sandals (Fort Rock) were woven from sagebrush bark.
4. Step 4. Plant fibre — is material for — Rope. Rope is twisted from plant fibres.
5. Step 5. Rope — is used in — Pulley. A rope runs over the pulley.
6. Step 6. Pulley — is part of — Elevator. The rope runs over a pulley.

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