 |
| minimum flow: 49 phrases in 20 subjects |
| Astronautics | 1 |
| Automated equipment | 1 |
| Construction | 2 |
| Ecology | 3 |
| Electronics | 3 |
| Energy industry | 4 |
| Gas processing plants | 4 |
| General | 2 |
| Geography | 1 |
| Hydraulic engineering | 4 |
| Hydrology | 1 |
| Mathematics | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Pumps | 4 |
| Sakhalin | 3 |
| Technology | 5 |
| Tengiz | 2 |
| Water resources | 5 |