Lipstick and chisel: what they have in common

1. Step 1. Lipstick — uses — Dye. Pigments.
2. Step 2. Dye — includes — Indigo. A dye.
3. Step 3. Indigo — is used in — Jeans. Indigo.
4. Step 4. Jeans — has part — Zip. A zip.
5. Step 5. Zip — has part — Wedge. The slider works like a wedge, bringing the teeth together and pushing them apart.
6. Step 6. Wedge — is used in — Chisel. The cutting edge is a wedge.

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