| like a reptile | 6 | other |
| unlike other mammals | 3 | other |
| than giving birth | 2 | other |
| platypus → lay → egg | 44 |
| platypus → be → egg-laying mammal | 8 |
| negative | neutral | positive |
| 0.209 | 0.700 | 0.092 |
| Raw frequency | 52 |
| Normalized frequency | 1.000 |
| Modifier score | 0.500 |
| Perplexity | 70.895 |