['they', 'use', 'EmptyParameter', 'effect', 'to']
['<PRP>', 'eat-39.1-3', 'EmptyParameter', "Synset('message.n.02')", 'to']
They were used to great effect in the Xindi war.
<PRP> were used to great Synset('message.n.02') in the <PERSON>1 Synset('venture.n.01').