Rear wing and router: what they have in common

1. Step 1. Rear wing — is a kind of — Wing. An inverted wing.
2. Step 2. Wing — is part of — Jet airliner. A swept wing.
3. Step 3. Jet airliner — has part — Radar. A weather radar.
4. Step 4. Radar — has part — Antenna. An antenna emits and receives.
5. Step 5. Antenna — is part of — Router. Antennas.

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