| like u238 | 2 | other |
| in a thermal neutron environment | 2 | location |
| like uranium | 2 | other |
| thorium → be → fertile | 7 |
| thorium → be → fertile material | 3 |
| negative | neutral | positive |
| 0.116 | 0.755 | 0.129 |
| Raw frequency | 10 |
| Normalized frequency | 0.431 |
| Modifier score | 1.000 |
| Perplexity | 129.883 |