| about such matters | 29 | other |
| about the value | 26 | other |
| about safety | 21 | other |
| student → have → concern | 652 |
| student → express → concern | 464 |
| student → expressed → concern | 114 |
| student → show → concern | 35 |
| student → express → their concern | 26 |
| student → expressed → their concerns | 14 |
| student → put → concern | 3 |
| negative | neutral | positive |
| 0.268 | 0.587 | 0.145 |
| Raw frequency | 1308 |
| Normalized frequency | 0.620 |
| Modifier score | 0.593 |
| Perplexity | 137.093 |