input: 
  def predict_labels(data: List[List[float]]) -> List[int]:
      """ Predict the class labels for a given set of data.
      The dataset contains 4 features: Length, Width, Height and Weight.
      >>> predict_labels([[5.1, 3.5, 1.4, 0.2]])
      [0]
      """
  
output:     if len(data) == 0:
          return []
      
      labels = []
      for item in data:
          length, width, height, weight = item
          if length < 5.0 or width < 3.0 or height < 1.0 or weight < 0.5:
              labels.append(0)
          else:
              labels.append(1)
      
      return labels