['they', 'assign', 'become', 'EmptyParameter', 'EmptyParameter'] ['they', 'become', 'disaster', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'future_having-13.3', 'become-109.1-1-1', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'become-109.1-1-1', "Synset('termination.n.05')", 'EmptyParameter', 'EmptyParameter']
The mission they were assigned to has become a disaster.
the Synset('duty.n.02') <PRP> were assigned to has become a Synset('termination.n.05').