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relay track : 25 phrases in 11 subjects |
| Aviation | 2 |
| Cartography | 1 |
| Communications | 4 |
| Earth sciences | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Rail transport | 3 |
| Space | 2 |
| Sports | 2 |
| Technology | 7 |
| United States | 1 |
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