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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def mark_sentence(s, args):
 """Insert markers around relation arguments in word sequence :param s: list of tokens in sentence. :type s: list to relation arguments :type args: list :return: The marked sentence. :rtype: list Example: Then Barack married Michelle. -> Then ~~[[1 Barack 1]]~~ married ~~[[2 Michelle 2]]~~. """


    marks = sorted([y for m in args for y in mark(*m)], reverse=True)
    x = list(s)
    for k, v in marks:
        x.insert(k, v)
    return x