['barge', 'arrive', 'EmptyParameter', 'gate', 'at']
["Synset('vessel.n.02')", 'escape-51.1', 'EmptyParameter', "Synset('sum.n.01')", 'at']
The barge then arrives at the gates of Gre'thor.
the Synset('vessel.n.02') then arrives at the Synset('sum.n.01') of Gre'thor.