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relational data : 23 phrases in 10 subjects |
| Aviation | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Information technology | 5 |
| Multimedia | 1 |
| Project management | 2 |
| Rail transport | 1 |
| Space | 3 |
| Technology | 4 |
| Telecommunications | 1 |
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