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#ifndef ALONE_LABELED_EDGE__
#define ALONE_LABELED_EDGE__
#include "search/edge.hh"
#include <string>
#include <vector>
namespace alone {
class LabeledEdge : public search::Edge {
public:
LabeledEdge() {}
void AppendWord(const std::string *word) {
words_.push_back(word);
}
const std::vector<const std::string *> &Words() const {
return words_;
}
private:
// NULL for non-terminals.
std::vector<const std::string*> words_;
};
} // namespace alone
#endif // ALONE_LABELED_EDGE__
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