| in surface flatness | 3 | other |
| between brands | 2 | other |
| quite dramatically | 2 | degree |
| surface → can → vary | 6 |
| surface → have → variation | 3 |
| negative | neutral | positive |
| 0.101 | 0.830 | 0.068 |
| Raw frequency | 9 |
| Normalized frequency | 0.163 |
| Modifier score | 0.500 |
| Perplexity | 86.175 |