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.
Osama bin Laden is the biggest oil producer in the world.
( z1 have-degree :ARG1 ( z2 person :name ( z3 name :op "Osama" :op "bin" :op "Laden" ) ) :ARG2 ( z4 big ) :ARG3 ( z5 most ) :ARG5 ( z6 country :ARG0-of ( z7 produce :ARG1 ( z8 oil ) ) :location ( z9 world ) ) )