Uninterruptible power supply and internal combustion engine: what they have in common

1. Step 1. Uninterruptible power supply — has part — Lead–acid battery. A battery.
2. Step 2. Lead–acid battery — includes — Car battery. Lead–acid.
3. Step 3. Car battery — is used in — Starter motor. Power.
4. Step 4. Starter motor — is part of — Internal combustion engine. A starter.

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