| in cross section | 7 | other |
| generally | 5 | degree |
| preferably | 3 | degree |
| tube → be → circular | 15 |
| tube → have → circular cross-sectional shape | 3 |
| negative | neutral | positive |
| 0.028 | 0.824 | 0.149 |
| Raw frequency | 18 |
| Normalized frequency | 0.334 |
| Modifier score | 0.950 |
| Perplexity | 337.133 |