code: def __getitem__(self, index):
      data = super().__getitem__(index)
      templates = [
          "is it true that {}?",
          "is the satement {} contained in the video?",
          "is the statement {} entailed in the video?",
      ]
      if data != None:
          data["text_output"] = (
              "yes" if data["label"] == "correct" else "no"
          )
          data["text_input"] = random.choice(templates).format(
              data["sentence"]
          )
      return data
  
imports: import os
  import random
  from lavis.datasets.datasets.base_dataset import BaseDataset
  from lavis.datasets.datasets.multimodal_classification_datasets import MultimodalClassificationDataset
  from lavis.datasets.datasets.caption_datasets import CaptionDataset
label_desc: Use image node_id 1 for calling the ViolinVideoEntailmentInstructDataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: data