def _categorize_vader(score):
    """
    Transform vader score into one of the following categorical values:
    - Very negative
    - Negative
    - Neutral
    - Positive
    - Very positive

    Returns a tuple with 5 positions (one for each category)
    where one element contains 1 and the others are 0.
    """
    if score < -0.6:
        # Very negative
        return (1, 0, 0, 0, 0)
    elif score < -0.2:
        # Negative
        return (0, 1, 0, 0, 0)
    elif score < 0.2:
        # Neutral
        return (0, 0, 1, 0, 0)
    elif score < 0.6:
        # Positive
        return (0, 0, 0, 1, 0)
    else:
        # Very positive
        return (0, 0, 0, 0, 1)