| by researchers | 2 | other |
| by using specific primers | 2 | manner |
| dna → be → tested | 102 |
| dna → be used in → test | 3 |
| dna → require for → the test | 3 |
| negative | neutral | positive |
| 0.175 | 0.729 | 0.096 |
| Raw frequency | 108 |
| Normalized frequency | 0.614 |
| Modifier score | 0.500 |
| Perplexity | 231.020 |