['Borg', 'reach', 'they', 'EmptyParameter', 'EmptyParameter']
['<PERSON>18', 'reach-51.8', '<PRP>', 'EmptyParameter', 'EmptyParameter']
The Borg would no longer be able to reach them.
the <PERSON>18 would no longer be Synset('able.a.01') to reach <PRP>.