| to give reasons | 26 | purpose |
| to show their work | 18 | purpose |
| to identify topics | 15 | purpose |
| teacher → require → student | 209 |
| teacher → require → the student | 18 |
| teacher → require → pupil | 8 |
| negative | neutral | positive |
| 0.185 | 0.672 | 0.143 |
| Raw frequency | 235 |
| Normalized frequency | 0.632 |
| Modifier score | 0.590 |
| Perplexity | 318.397 |