| as forming a front | 6 | other |
| often | 4 | temporal |
| previously | 3 | temporal |
| tube → be → described | 14 |
| tube → be described in → example | 6 |
| tube → be → defined | 5 |
| negative | neutral | positive |
| 0.075 | 0.831 | 0.094 |
| Raw frequency | 25 |
| Normalized frequency | 0.395 |
| Modifier score | 0.733 |
| Perplexity | 288.883 |