['who', 'be', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['he', 'appear', 'be', 'EmptyParameter', 'EmptyParameter']
['who', 'seem-109', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'appear-48.1.1', 'seem-109', 'EmptyParameter', 'EmptyParameter']
Tucker is not who he appears to be.
<PERSON>4 is not who <PRP> appears to be.