Table 9.
The ER classification results of different length of sentences
| length of sentences | 0–18 | 19–100 | > 100 |
| number of sentences | 5311 | 2320 | 96 |
| P | 0.723 | 0.714 | 0.612 |
| R | 0.743 | 0.744 | 0.669 |
| F | 0.733 | 0.729 | 0.639 |
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