['he', 'have', 'work', 'EmptyParameter', 'EmptyParameter'] ['he', 'work', 'EmptyParameter', 'chair', 'on']
['<PRP>', 'own-100', 'work-73.2', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'work-73.2', 'EmptyParameter', "Synset('occupation.n.01')", 'on']
He has to work on the chair first.
<PRP> has to work on the Synset('occupation.n.01') <ORDINAL>0.