['she', 'find', 'concentrate', 'EmptyParameter', 'EmptyParameter'] ['it', 'concentrate', 'EmptyParameter', 'anything', 'on']
['<PRP>', 'declare-29.4', 'focus-87.1', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'focus-87.1', 'EmptyParameter', "Synset('entity.n.01')", 'on']
She is finding it too difficult to concentrate on anything.
<PRP> is finding <PRP> too Synset('unmanageable.a.02') to concentrate on Synset('entity.n.01').