| from rare einsteinium | 2 | location |
| respectively | 2 | manner |
| along with plutonium-239 in nuclear reactors | 2 | location |
| isotope → be → produced | 5 |
| isotope → be → made | 3 |
| negative | neutral | positive |
| 0.466 | 0.471 | 0.063 |
| Raw frequency | 8 |
| Normalized frequency | 0.708 |
| Modifier score | 0.500 |
| Perplexity | 112.988 |