['they', 'breathe', 'sigh', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'breathe-40.1.2-1', "Synset('happening.n.01')", 'EmptyParameter', 'EmptyParameter']
They breathe a collective sigh of relief.
<PRP> breathe a Synset('collective.a.02') Synset('happening.n.01') of Synset('accomplishment.n.01').