def _init_label_table(table, label_column_name):
    """
    This function initializes inputs required for label_table function.
    Specifically, this function makes a copy of the input table and
    initializes the column values to 0s.
    """
    # Create a copy of the input table
    labeled_table = table.copy()

    # Add the label column at the end and initialize to 0s (non-match)
    labeled_table[label_column_name] = 0

    # Return the label table
    return labeled_table