['he', 'grab', 'she', 'EmptyParameter', 'behind'] ['he', 'pin', 'arm', 'she', 'behind']
['<PRP>', 'steal-10.5', '<PRP>', 'EmptyParameter', 'behind'] ['<PRP>', 'tape-22.4', "Synset('covering.n.02')", '<PRP>', 'behind']
He grabs her from behind, pinning her arms behind her, and demands.
<PRP> grabs <PRP> from behind, pinning <PRP> Synset('covering.n.02') behind her, and Synset('process.n.06').