['he', 'realize', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['what', 'go', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'comprehend-87.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['what', 'disappearance-48.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
From her expression, he realizes exactly what is going on.
from <PRP> expression, <PRP> realizes exactly what is going on.