| aim to preserve natural… | 0.68 |
| protect our plant resou… | 0.66 |
| ensure the survival of … | 0.43 |
| generate decision-suppo… | 0.33 |
| involve protecting the … | 0.25 |
| divide people | 0.25 |
| divide nature | 0.25 |
| protect endangered spec… | 0.25 |
| essential | 0.55 |
| complex | 0.38 |
| weak | 0.25 |
| successful | 0.16 |
| used to include the set… | 0.58 |
| used to include active … | 0.58 |
| achieved | 0.48 |
| aimed | 0.33 |
| established | 0.25 |
| associated with the pro… | 0.25 |
| defined | 0.25 |
| concerned | 0.25 |