['he', 'head', 'greet', 'EmptyParameter', 'EmptyParameter'] ['he', 'greet', 'mass', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'contiguous_location-47.8', 'judgment-33.1', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'judgment-33.1', "Synset('measure.n.02')", 'EmptyParameter', 'EmptyParameter']
Before he heads out to greet the masses.
before <PRP> heads out to greet the Synset('measure.n.02').