'Return a string representation for this ``AlignedSent``.
:rtype: str'

def __repr__(self):

    words = (u'[%s]' % u',    '.join(((u"'%s'" % w) for w in self._words)))
    mots = (u'[%s]' % u',    '.join(((u"'%s'" % w) for w in self._mots)))
    return (u'AlignedSent(%s,    %s,    %r)' % (words, mots, self._alignment))
