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observation : 256 phrases in 28 subjects |
Advertising | 1 |
Astronautics | 6 |
Audit | 1 |
Aviation | 33 |
Chemistry | 4 |
Communications | 1 |
Construction | 3 |
Diplomacy | 6 |
Economy | 2 |
Environment | 1 |
European Union | 1 |
Forestry | 1 |
General | 18 |
Geology | 1 |
Health care | 2 |
Information technology | 2 |
Law | 13 |
Mathematics | 6 |
Medical | 2 |
Meteorology | 11 |
Military | 112 |
Nautical | 2 |
Oil / petroleum | 1 |
Oil and gas | 2 |
Psychology | 9 |
Rail transport | 3 |
Statistics | 2 |
Technology | 10 |