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Stanford CoreNLP provides a set of natural language analysis tools which can take raw English language text input and give the base forms of words, their parts of speech, whether they are names of companies, people, etc., normalize dates, times, and numeric quantities, mark up the structure of sentences in terms of phrases and word dependencies, and indicate which noun phrases refer to the same entities. It provides the foundational building blocks for higher level text understanding applications.

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package edu.stanford.nlp.parser.shiftreduce;

import java.util.List;

/**
 * Combines multiple feature factories into one feature factory
 *
 * @author John Bauer
 */
public class CombinationFeatureFactory extends FeatureFactory {
  FeatureFactory[] factories;

  public CombinationFeatureFactory(FeatureFactory[] factories) {
    this.factories = factories;
  }

  @Override
  public List featurize(State state, List features) {
    for (FeatureFactory factory : factories) {
      factory.featurize(state, features);
    }
    return features;
  }

  private static final long serialVersionUID = 1;
}