['century', 'see', 'EmptyParameter', 'front', 'as']
['<DATE>0', 'comprehend-87.2-1-1', 'EmptyParameter', "Synset('surface.n.01')", 'as']
The 22nd century is seen as an important front in the war.
<DATE>0 is seen as an Synset('significant.a.01') Synset('surface.n.01') in <DATE>0 Synset('group_action.n.01').