Saudi Arabia, the biggest oil producer in the world, was once a supporter of Osama bin Laden and his associates who led attacks against the United States.
The United States is not the biggest oil producer in the world
( z1 have-degree :polarity - :ARG1 ( z2 country :name ( z3 name :op "United" :op "States" ) ) :ARG2 ( z4 big ) :ARG3 ( z5 most ) :ARG5 ( z6 country :ARG0-of ( z7 produce :ARG1 ( z8 oil ) ) :location ( z9 world ) ) )