Canning and bellows: what they have in common

1. Step 1. Canning — uses — Tin can. Canned food in tins.
2. Step 2. Tin can — is made of — Tin. Tinplate.
3. Step 3. Tin — is used in — Linotype. A line is cast from type metal (lead, tin, antimony).
4. Step 4. Linotype — has part — Keyboard. A keyboard.
5. Step 5. Keyboard — is part of — Pipe organ. Manuals were the first keyboards.
6. Step 6. Pipe organ — has part — Bellows. Bellows supply the air.

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