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SLUDGE : 331 phrases in 21 subjects |
| Agriculture | 18 |
| Bioenergy | 1 |
| Chemistry | 3 |
| Coal | 1 |
| Construction | 1 |
| Earth sciences | 9 |
| Economics | 1 |
| Electronics | 1 |
| Energy industry | 17 |
| Environment | 234 |
| General | 4 |
| Industry | 4 |
| Life sciences | 13 |
| Mechanic engineering | 3 |
| Medical | 3 |
| Metallurgy | 11 |
| Mineral products | 1 |
| Oil / petroleum | 2 |
| Politics | 1 |
| Technology | 1 |
| Transport | 2 |