| in order to keep fuel consumption | 3 | purpose |
| with two valves per cylinder | 2 | other |
| engine → use → egr | 8 |
| engine → work with → egr | 4 |
| engine → have → egr | 3 |
| negative | neutral | positive |
| 0.110 | 0.732 | 0.158 |
| Raw frequency | 15 |
| Normalized frequency | 0.260 |
| Modifier score | 1.000 |
| Perplexity | 248.103 |