The model takes image and text as input, so let's use the exact same image/question pair from the first example in the VQA dataset: 
 

example = dataset[0]
image = Image.open(example['image_id'])
question = example['question']

To use BLIP-2 for visual question answering task, the textual prompt has to follow a specific format: Question: {} Answer:.

prompt = f"Question: {question} Answer:"