['Archer', 'walk', 'EmptyParameter', 'dune', 'across'] ['Tucker', 'walk', 'EmptyParameter', 'dune', 'across']
['<PERSON>1', 'run-51.3.2', 'EmptyParameter', "Synset('natural_elevation.n.01')", 'across'] ['<PERSON>2', 'run-51.3.2', 'EmptyParameter', "Synset('natural_elevation.n.01')", 'across']
On the surface, Archer and Tucker are walking across sand dunes.
on the surface, <PERSON>1 and <PERSON>2 are walking across Synset('sand.n.02') Synset('natural_elevation.n.01').