in the atmosphere | 3 | location |
to destroy bacteria | 2 | purpose |
ozone → be → required | 3 |
ozone → be → necessary | 3 |
negative | neutral | positive |
0.190 | 0.559 | 0.251 |
Raw frequency | 6 |
Normalized frequency | 0.148 |
Modifier score | 0.500 |
Perplexity | 275.847 |