C1w3 ungraded lab typo in the comments or error in the python?

The ungraded Data Labeling lab has an error or typo:

# Allow unigrams and bigrams
vectorizer = CountVectorizer(ngram_range=(1, 5))

If the comment is correct (i.e. “unigrams and bigrams” only), then the argument passed to CountVectorizer() should be ngram_range(1, 2), not ngram_range(1, 5).

Alternatively, if the argument is correct, then the comment should read:

# Allow unigrams, bigrams, trigrams, 4-grams and 5-grams

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