Wet lotion and internal combustion engine: what they have in common

1. Step 1. Wet lotion — is part of — Wet wipes. A lotion of water and surfactants.
2. Step 2. Wet wipes — is made of — Textile. Wet wipes are non-woven cloth soaked in lotion.
3. Step 3. Textile — is made of — Silk. Silk.
4. Step 4. Silk — is material for — Hot air balloon. The Montgolfier balloon was fabric lined with paper.
5. Step 5. Hot air balloon — evolved into — Airship. A steerable balloon.
6. Step 6. Airship — has part — Internal combustion engine. Internal combustion engines.

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