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Fconst score, all sentences
| Parser | Fconst |
| Charniak-Lease | 80.2 |
| Bikel (0.9.8) | 79.4 |
| Bikel (0.9.9c) | 79.4 |
| Charniak (Aug 05) | 78.1 |
| Collins (model 2) | 77.8 |
| Collins (model 3) | 77.2 |
| Collins (model 1) | 76.4 |
| Stanford (unlexicalised) | 72.3 |
| Stanford (lexicalised) | 71.1 |
Parser effectiveness based on comparison of constituent trees to the GENIA treebank, summed over entire corpus.
