Nose clip wire and oil lamp: what they have in common

1. Step 1. Nose clip wire — is part of — Surgical mask. A wire shaped to the nose.
2. Step 2. Surgical mask — is made of — Polyethylene. Non-woven polypropylene.
3. Step 3. Polyethylene — is made of — Crude oil. Made from petroleum products.
4. Step 4. Crude oil — is material for — Kerosene. A fraction of crude oil.
5. Step 5. Kerosene — is used in — Kerosene lamp. The fuel.
6. Step 6. Kerosene lamp — evolved from — Oil lamp. A development of the oil lamp.

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