['asteroid', 'hit', 'planet', 'EmptyParameter', 'EmptyParameter']
["Synset('celestial_body.n.01')", 'hurt-40.8.3-1', "Synset('natural_object.n.01')", 'EmptyParameter', 'EmptyParameter']
An asteroid hit the planet.
an Synset('celestial_body.n.01') hit the Synset('natural_object.n.01').