['they', 'retrieve', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'obtain-13.5.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
They were retrieved by, and re-assimilated into, the Collective.
<PRP> were retrieved by, and re-assimilated into, the Synset('organization.n.01').