['he', 'become', 'obsess', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'become-109.1-1-1', 'marvel-31.3', 'EmptyParameter', 'EmptyParameter']
By his own admission, he's become obsessed with Voyager.
by <PRP> own admission, he's become obsessed with <VESSEL>1.