['officer', 'set', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('sailor.n.01')", 'other_cos-45.4', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
The officers set about trying to determine the rift's source.
the Synset('sailor.n.01') set about trying to determine the rift's Synset('work.n.02').