Claes denied categorically that they had ever known of the existence of an Agusta proposal, and told the NATO ambassadors that he did not know anything about an Agusta payment to the Socialist Party.
Claes knew about an Agusta payment to the Socialist Party.
Just because he denied the charge doesn't mean he is innocent (or guilty for that matter).  The AI isn't adept at things that are inferred but not explicitly stated.
( z1 know :ARG0 ( z2 person :name ( z3 name :op "Claes" ) ) :ARG1 ( z4 pay :ARG0 ( z5 company :name ( z6 name :op "Agusta" ) ) :ARG2 ( z7 political-party :name ( z8 name :op "Socialist" :op "Party" ) ) ) )