['wave', 'approach', 'Flyer', 'EmptyParameter', 'EmptyParameter']
["Synset('soldier.n.01')", 'escape-51.1', '<VESSEL>0', 'EmptyParameter', 'EmptyParameter']
A shock wave approaches the Delta Flyer from behind.
a Synset('geological_phenomenon.n.01') Synset('soldier.n.01') approaches the <VESSEL>0 from behind.