['weapon', 'install', 'EmptyParameter', 'departure', 'because']
["Synset('communication.n.01')", 'put-9.1', 'EmptyParameter', "Synset('change.n.01')", 'because']
The weapons weren't installed because of their early departure from Earth.
the Synset('communication.n.01') weren't installed because of <PRP> Synset('early.a.05') Synset('change.n.01') from <LOCATION>2.