| sometimes | 7 | temporal |
| protein → contain → sulfur | 15 |
| protein → require → sulfur | 4 |
| protein → contain → sulfur atoms | 3 |
| protein → be composed of → sulfur | 3 |
| negative | neutral | positive |
| 0.106 | 0.842 | 0.052 |
| Raw frequency | 25 |
| Normalized frequency | 0.332 |
| Modifier score | 0.600 |
| Perplexity | 106.905 |