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Degradation to scores for the M1 metric when each feature set was removed from the full system
| Removed feature set | F1 (M1) | Impact |
| Context features | 70.0 | −3.7 |
| Similarity features | 72.6 | −1.1 |
| Nested relation features | 73.2 | −0.5 |
| Single concept features | 73.4 | −0.3 |
| Wikipedia features | 73.4 | −0.3 |
| Concept vicinity features | 73.6 | −0.1 |
