Doll body and r-7 rocket: what they have in common

1. Step 1. Doll body — is part of — Doll. A body of cloth, wood or plastic.
2. Step 2. Doll — is made of — Clay. And shaped from clay.
3. Step 3. Clay — is material for — Oil lamp. Later — clay ones.
4. Step 4. Oil lamp — evolved into — Kerosene lamp. A development of the oil lamp.
5. Step 5. Kerosene lamp — uses — Kerosene. The fuel.
6. Step 6. Kerosene — is material for — R-7 rocket. The fuel is kerosene.

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