 |
| épuration: 139 phrases in 17 subjects |
| Agriculture | 4 |
| Chemistry | 11 |
| Coal | 2 |
| Earth sciences | 1 |
| Ecology | 8 |
| Economy | 1 |
| Environment | 83 |
| General | 7 |
| Human rights activism | 2 |
| Industry | 4 |
| Information technology | 1 |
| Labor law | 1 |
| Life sciences | 2 |
| Medical | 6 |
| Natural sciences | 1 |
| Technology | 2 |
| Transport | 3 |