| in swamps | 5 | location |
| for their eggs | 2 | purpose |
| during the late summer | 2 | temporal |
| snake → make → nest | 4 |
| snake → build → nest | 4 |
| negative | neutral | positive |
| 0.456 | 0.516 | 0.028 |
| Raw frequency | 8 |
| Normalized frequency | 0.196 |
| Modifier score | 0.900 |
| Perplexity | 237.667 |