['she', 'grab', 'arm', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'obtain-13.5.2', "Synset('device.n.01')", 'EmptyParameter', 'EmptyParameter']
Instinctively, she grabs his arm, stopping him.
Instinctively, <PRP> grabs <PRP> arm, stopping <PRP>.