'Return a string containing a pretty-printed representation of
the given verbnet frame.
:param vnframe: An ElementTree containing the xml contents of
a verbnet frame.'

def pprint_frame(self, vnframe, indent=u''):

    s = (self.pprint_description(vnframe, indent) + u'\n')
    s += (self.pprint_syntax(vnframe, (indent + u'        Syntax:    ')) + u'\n')
    s += (indent + u'        Semantics:\n')
    s += self.pprint_semantics(vnframe, (indent + u'                '))
    return s
