['year', 'put', 'EmptyParameter', 'they', 'behind']
["Synset('fundamental_quantity.n.01')", 'put-9.1-2', 'EmptyParameter', '<PRP>', 'behind']
Thousands of light years could be put behind them in mere days, taking years off their journey.
Synset('integer.n.01') of Synset('light.a.03') Synset('fundamental_quantity.n.01') could be put behind <PRP> in mere days, taking Synset('fundamental_quantity.n.01') off <PRP> Synset('motion.n.06').