['infrastructure', 'make', 'EmptyParameter', 'titanium', 'of']
["Synset('accumulation.n.04')", 'build-26.1', 'EmptyParameter', "Synset('chemical_element.n.01')", 'of']
The drone's infrastructure was made of titanium, meaning.
the drone's Synset('accumulation.n.04') was made of titanium, Synset('content.n.05').