Zener diode and bicycle: what they have in common

1. Step 1. Zener diode — is a kind of — Diode. A diode.
2. Step 2. Diode — includes — LED. A light-emitting diode.
3. Step 3. LED — is part of — Bike light with dynamo. An LED.
4. Step 4. Bike light with dynamo — is part of — Bicycle. A lamp.

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