| Typicality: | 0.433 |
| Saliency: | 0.430 |
| from ephedrine | 3 | location |
| by japanese chemist nagai nagayoshi | 3 | other |
| shortly after | 2 | temporal |
| methamphetamine → be discovered in → 1893 | 8 |
| methamphetamine → be synthesized in → 1893 | 5 |
| negative | neutral | positive |
| 0.265 | 0.705 | 0.031 |
| Raw frequency | 13 |
| Normalized frequency | 0.430 |
| Modifier score | 0.500 |
| Perplexity | 71.987 |