['they', 'reach', 'end', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'get-13.5.1', "Synset('football_player.n.01')", 'EmptyParameter', 'EmptyParameter']
They reach the end of the alley.
<PRP> reach the Synset('football_player.n.01') of the Synset('path.n.02').