['metal', 'have', 'impurity', 'EmptyParameter', 'EmptyParameter']
["Synset('substance.n.01')", 'own-100', "Synset('state.n.02')", 'EmptyParameter', 'EmptyParameter']
The metal has too many impurities and is useless.
the Synset('substance.n.01') has too Synset('many.a.01') Synset('state.n.02') and is Synset('useless.a.01').