Table 6.
Patterns for feature extraction
| Feature | Pattern |
|---|---|
| F1 | JJ NN NNS |
| F2 | NN NN + |
| F3 | VBN/VBD NN NNS |
| F4 | JJ RB/RBR/RBS NN/NNS |
| F5 | RB/RBR/RBS JJ NN/NNS |
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