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Structural Element : 32 phrases in 15 subjects |
| Architecture | 2 |
| Astronautics | 3 |
| Aviation | 1 |
| Building structures | 1 |
| Chess | 1 |
| Construction | 10 |
| Electronics | 1 |
| Mechanic engineering | 1 |
| Military | 2 |
| Nanotechnology | 2 |
| Neural networks | 1 |
| Rail transport | 1 |
| Seismology | 1 |
| Space | 4 |
| Technology | 1 |