['what', 'happen', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['nothing', 'do', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['what', 'occur-48.3', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ["Synset('measure.n.02')", 'act-114', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
It is the only way to prevent what will happen if nothing is done.
<PRP> is the only Synset('concept.n.01') to prevent what will happen if Synset('measure.n.02') is done.