['they', 'head', 'EmptyParameter', 'field', 'towards']
['<PRP>', 'contiguous_location-47.8', 'EmptyParameter', "Synset('geographical_area.n.01')", 'towards']
They head towards a nearby comet dust field for cover.
<PRP> head towards a nearby Synset('natural_object.n.01') Synset('substance.n.01') Synset('geographical_area.n.01') for Synset('artifact.n.01').