I am stuck with the neutral tweets calculation

Data Analysis with Python: Zero to Pandas Assignment 1 - Python Practice
#1 
    number_of_neutral_tweets = 0

    # perform the calculation here
    for tweet in tweets:
        for word in happy_words:
            for word in sad_words:
                if word not in tweet:
                    number_of_neutral_tweets += 1
#2

3 posts were merged into an existing topic: I am stuck with The optional neutral tweet count

#3