['Alien', 'drop', 'device', 'EmptyParameter', 'EmptyParameter']
["Synset('imaginary_being.n.01')", 'meander-47.7', "Synset('communication.n.02')", 'EmptyParameter', 'EmptyParameter']
Alien's dropped device to signal him back into the holodeck.
Alien's dropped Synset('communication.n.02') to signal <PRP> back into the <LOCATION>1.