['he', 'realize', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['they', 'strand', 'EmptyParameter', 'planet', 'on']
['<PRP>', 'discover-84', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'strand', 'EmptyParameter', "Synset('person.n.01')", 'on']
He realized they were stranded on a deserted planet.
<PRP> realized <PRP> were stranded on a deserted Synset('person.n.01').