['they', 'work', 'preserve', 'EmptyParameter', 'EmptyParameter'] ['they', 'preserve', 'ship', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'work-73.2', 'defend-72.3', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'defend-72.3', "Synset('craft.n.02')", 'EmptyParameter', 'EmptyParameter']
Because they are 35,000 light-years from Earth, they should work to preserve both ships.
because <PRP> are 35,000 Synset('linear_unit.n.01') from Earth, <PRP> should work to preserve Synset('physical_entity.n.01') Synset('craft.n.02').