Ethernet ports and refrigerator: what they have in common

1. Step 1. Ethernet ports — is part of — Router. Ethernet ports.
2. Step 2. Router — is part of — Internet. A network of routers.
3. Step 3. Internet — is used in — Internet of things. Connecting to the network.
4. Step 4. Internet of things — is used in — Smart home. Devices on a network.
5. Step 5. Smart home — has part — Thermostat. A smart thermostat.
6. Step 6. Thermostat — is part of — Refrigerator. A thermostat.

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