['they', 'warn', 'Earth', 'EmptyParameter', 'EmptyParameter'] ['they', 'prevent', 'launching', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'advise-37.9', '<LOCATION>0', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'forbid-64.4-1', "Synset('act.n.02')", 'EmptyParameter', 'EmptyParameter']
They could either warn Earth or prevent the launching of the probe.
<PRP> could either warn <LOCATION>0 or prevent the Synset('act.n.02') of the Synset('investigation.n.02').