['it', 'cover', 'hull', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'fill-9.8-1', "Synset('artifact.n.01')", 'EmptyParameter', 'EmptyParameter']
It should be enough to cover the forward hull.
<PRP> should be enough to cover the Synset('forward.a.03') Synset('artifact.n.01').