| for use on airplanes | 6 | purpose |
| for air travel | 6 | purpose |
| as a child seat | 4 | manner |
| car seat → be → approved | 34 |
| car seat → be approved for → use | 9 |
| negative | neutral | positive |
| 0.070 | 0.647 | 0.283 |
| Raw frequency | 43 |
| Normalized frequency | 0.531 |
| Modifier score | 0.800 |
| Perplexity | 172.933 |