define_nodes_prompt = PromptTemplate(
    input_variables=["example", "structure"],
    template=("""
        Analyze the dataset structure below and extract the entity labels for nodes and their properties.n
        The node properties should be based on the dataset columns and their values.n
        Return the result as a dictionary where the keys are the node labels and the values are the node properties.nn
        Example: {example}nn
        Dataset Structure:n{structure}nn
        Make sure to include all the possible node labels and their properties.n
        If a property can be its own node, include it as a separate node label.n
        Please do not report triple backticks to identify a code block, just return the list of tuples.n
        Return only the dictionary containing node labels and properties, and don't include any other text or quotation.
    """),
)