Butter churn and chisel: what they have in common

1. Step 1. Butter churn — uses — Lever. A dasher.
2. Step 2. Lever — is used in — Shovel. The handle is a lever.
3. Step 3. Shovel — has part — Handle. A handle.
4. Step 4. Handle — is part of — Chisel. A wooden or plastic handle.

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