code: package anonymous.dataset.model;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  public class BigDataModel {
      Map<String, List<String>> answers = new HashMap<>();
      Map<String, String> query =new HashMap<>();
      Map<String, Long> query_id = new HashMap<>();
      Map<String, String> query_type = new HashMap<>();
  
      public Map<String, List<String>> getAnswers() {
          return answers;
      }
  
      public void setAnswers(Map<String, List<String>> answers) {
          this.answers = answers;
      }
  
  
      public Map<String, String> getQuery() {
          return query;
      }
  
      public void setQuery(Map<String, String> query) {
          this.query = query;
      }
  
      public Map<String, Long> getQuery_id() {
          return query_id;
      }
  
      public void setQuery_id(Map<String, Long> query_id) {
          this.query_id = query_id;
      }
  
      public Map<String, String> getQuery_type() {
          return query_type;
      }
  
      public void setQuery_type(Map<String, String> query_type) {
          this.query_type = query_type;
      }
  }
  