For example, by suggesting that the Minister of Labour uses parliamentary immunity to take an unfair action against a person, he is implying that if he spoke outside the House of Commons the Minister of Labour would be subject to some kind of civil suit, so he is imputing motives to the Minister of Labour.
The Minister of Labour is a man.
The article uses he pronouns (if he spoke outside the house of commons) so the Minister of Labour is a man. I think this is difficult for the system because you really have to work to get that from context as the sentence is structured poorly.
( z1 man :domain ( z2 person :ARG0-of ( z3 have-org-role :ARG1 ( z4 political-party :name ( z5 name :op "Labour" ) ) :ARG2 ( z6 minister ) ) ) )