['drone', 'piggyback', 'EmptyParameter', 'beam', 'on']
["Synset('prosody.n.01')", 'piggyback', 'EmptyParameter', "Synset('communication.n.02')", 'on']
The drones must have piggybacked on Voyager's transporter beam.
the Synset('prosody.n.01') must have piggybacked on Voyager's Synset('lifting_device.n.01') Synset('communication.n.02').