| Share | Phrase |
|---|
| 68.68% | play role [perform operation] |
| 10.17% | important [importance] role |
| 4.60% | fulfil role [perform operation] |
| 3.23% | multi-function role |
| 3.05% | fulfill role [perform operation] |
| 1.95% | serve role [perform operation] |
| 1.80% | role [does] steer |
| 1.72% | major [importance] role |
| 1.31% | significant [importance] role |
| 0.99% | equal [similarity] role |
| 0.85% | perform role [perform operation] |
| 0.55% | have role [perform operation] |
| 0.53% | not role |
| 0.49% | role [does] provide |