| in relatively close proximity to earth | 5 | location |
| carefully | 3 | manner |
| extensively | 2 | degree |
| moon → be → studied | 15 |
| moon → have → scientific value | 5 |
| negative | neutral | positive |
| 0.025 | 0.552 | 0.423 |
| Raw frequency | 20 |
| Normalized frequency | 0.276 |
| Modifier score | 0.500 |
| Perplexity | 219.327 |