['they', 'surrender', 'vinculum', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'contribute-13.2', 'vinculum', 'EmptyParameter', 'EmptyParameter']
To hail the aliens to tell them they are surrendering the vinculum.
to hail the Synset('entrant.n.03') to tell <PRP> are surrendering the vinculum.