More details on Phrasal discriminative features

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Various discriminative features could be specified under the [additional-featurizers] section in Phrasal *.ini files.

Discriminative Phrase Table,arg2,arg3)

 "arg1" --  true/false, whether to use lexicalized features or not (default=true)
 "arg2" --  true/false, whether to use class-based features or not (default=false)
 "arg3" --  int, whether to threshold feature count (default=-1, no thresholding)