['they', 'localize', 'probe', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'localize', "Synset('investigation.n.02')", 'EmptyParameter', 'EmptyParameter']
In astrometrics, they are unable to localize the probe.
in astrometrics, <PRP> are Synset('unable.a.01') to localize the Synset('investigation.n.02').