['problem', 'be', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('cognitive_factor.n.01')", 'representation-110.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
There is a problem if it was unclaimed at the time.
there is a Synset('cognitive_factor.n.01') if <PRP> was unclaimed at the Synset('time_period.n.01').