['people', 'have', 'idea', 'EmptyParameter', 'EmptyParameter'] ['idea', 'lurk', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('abstraction.n.06')", 'own-100', "Synset('goal.n.01')", 'EmptyParameter', 'EmptyParameter'] ["Synset('goal.n.01')", 'exist-47.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
Not having been at these depths before, his people have no idea what lurks down here.
not having been at these Synset('abstraction.n.06') before, <PRP> Synset('abstraction.n.06') have no Synset('goal.n.01') what lurks down here.