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| Airplanes | |
|---|---|
| Broader Terms | Aircraft_(82) |
| Narrower Terms | Biplanes_(4), Monoplanes_(6), |
| Related Terms | Parachuting_(2), |
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| Airplanes | |
|---|---|
| Broader Terms | Aircraft_(82) |
| Narrower Terms | Biplanes_(4), Monoplanes_(6), |
| Related Terms | Parachuting_(2), |