['they', 'notice', 'something', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'see-30.1-1-1', "Synset('entity.n.01')", 'EmptyParameter', 'EmptyParameter']
During the debris scan, they notice something.
during the Synset('waste.n.01') scan, <PRP> notice Synset('entity.n.01').