def compute_total_average_word_length(sentence_list):
    '\n    Calculate average word length for multiple sentences\n    :param sentence_list: a list of sentences, each being a list of words\n    :return: The average length of words in this list of sentences\n    '
    lengths = [compute_average_word_length(tokens) for tokens in sentence_list]
    return (sum(lengths) / len(lengths))
Calculate average word length for multiple sentences
:param sentence_list: a list of sentences, each being a list of words
:return: The average length of words in this list of sentences
def compute_total_average_word_length(sentence_list):
    '\n    Calculate average word length for multiple sentences\n    :param sentence_list: a list of sentences, each being a list of words\n    :return: The average length of words in this list of sentences\n    '
    lengths = [compute_average_word_length(tokens) for tokens in sentence_list]
    return (sum(lengths) / len(lengths))