def flesch_kincaid_grade_level(n_syllables, n_words, n_sents):
    """https://en.wikipedia.org/wiki/Flesch%E2%80%93Kincaid_readability_tests#Flesch.E2.80.93Kincaid_grade_level"""
    return 11.8 * (n_syllables / n_words) + 0.39 * (n_sents / n_words) - 15.59
dataset/ETHPy150Open chartbeat-labs/textacy/textacy/text_stats.py/flesch_kincaid_grade_level/swapped operands of `/`