| in communication with the second lumen | 13 | other |
| balloon → have → interior | 16 |
| balloon → have → its interior | 12 |
| balloon → have → interior space | 3 |
| negative | neutral | positive |
| 0.036 | 0.886 | 0.078 |
| Raw frequency | 31 |
| Normalized frequency | 0.409 |
| Modifier score | 0.500 |
| Perplexity | 386.748 |