def remove_if_not_in_vocab(vocab, list_of_words):
    """Return new list that only contains words found in the vocab"""
    not_in_vocab = [word for word in list_of_words if word not in vocab]
    cleaned_list = [word for word in list_of_words if word not in not_in_vocab]
    print("Removed the following words:", not_in_vocab)
    return cleaned_list