['they', 'return', 'EmptyParameter', 'it', 'to'] ['they', 'use', 'it', 'EmptyParameter', 'to']
['<PRP>', 'escape-51.1-1', 'EmptyParameter', '<PRP>', 'to'] ['<PRP>', 'eat-39.1-3', '<PRP>', 'EmptyParameter', 'to']
They must return to it and use it.
<PRP> must return to <PRP> and use <PRP>.