['they', 'try', 'hail', 'EmptyParameter', 'EmptyParameter'] ['they', 'hail', 'they', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'try-61.1', 'judgment-33.1', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'judgment-33.1', '<PRP>', 'EmptyParameter', 'EmptyParameter']
They try to hail them.
<PRP> try to hail <PRP>.