['they', 'set', 'course', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'put-9.1', "Synset('artifact.n.01')", 'EmptyParameter', 'EmptyParameter']
They set a return course for Tarquin's planet.
<PRP> set a Synset('lever.n.01') Synset('artifact.n.01') for Tarquin's Synset('person.n.01').