['they', 'knock', 'engine', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'hit-18.1', "Synset('wheeled_vehicle.n.01')", 'EmptyParameter', 'EmptyParameter']
They are able to knock off Kago's engines.
<PRP> are Synset('able.a.01') to knock off Kago's Synset('wheeled_vehicle.n.01').