['they', 'materialize', 'EmptyParameter', 'platform', 'on']
['<PRP>', 'appear-48.1.1', 'EmptyParameter', "Synset('system.n.01')", 'on']
They materialize on the transporter platform.
<PRP> materialize on the Synset('lifting_device.n.01') Synset('system.n.01').