['Laden', 'begin', 'hike', 'EmptyParameter', 'EmptyParameter'] ['they', 'begin', 'hike', 'EmptyParameter', 'EmptyParameter']
['laden', 'begin-55.1-1-1', 'run-51.3.2', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'begin-55.1-1-1', 'run-51.3.2', 'EmptyParameter', 'EmptyParameter']
Laden with heavy backpacks, they begin hiking across the landscape.
laden with Synset('heavy.a.09') backpacks, <PRP> begin hiking across the Synset('art.n.01').