@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    Suggestion result = (Suggestion)o;

    if (metrics != result.metrics) return false;
    if (word != null ? !word.equals(result.word) : result.word != null) return false;

    return true;
  }
@Override
  public boolean equals(Object o)