| at that time | 4 | temporal |
| for 5,000 years | 3 | temporal |
| to cover floors | 3 | purpose |
| tile → be used for → roofing | 14 |
| tile → be used on → roof | 8 |
| tile → be used to cover → roof | 6 |
| tile → be used for → roof | 6 |
| negative | neutral | positive |
| 0.071 | 0.810 | 0.119 |
| Raw frequency | 34 |
| Normalized frequency | 0.429 |
| Modifier score | 0.600 |
| Perplexity | 54.139 |