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#ifndef _GRAMMAR_H_
#define _GRAMMAR_H_
#include <iostream>
#include <string>
#include <vector>
using namespace std;
namespace extractor {
class Rule;
class Grammar {
public:
Grammar(const vector<Rule>& rules, const vector<string>& feature_names);
vector<Rule> GetRules() const;
vector<string> GetFeatureNames() const;
friend ostream& operator<<(ostream& os, const Grammar& grammar);
private:
vector<Rule> rules;
vector<string> feature_names;
};
} // namespace extractor
#endif
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