['he', 'speak', 'materialize', 'EmptyParameter', 'EmptyParameter'] ['he', 'materialize', 'EmptyParameter', 'platform', 'on']
['<PRP>', 'lecture-37.11-1', 'appear-48.1.1', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'appear-48.1.1', 'EmptyParameter', "Synset('system.n.01')", 'on']
The form of the alien he spoke to materializes on the platform.
the Synset('language_unit.n.01') of the alien <PRP> spoke to materializes on the Synset('system.n.01').