The World Health Organization moved Friday, to revise alarming predictions that a pandemic stemming from the bird flu virus ravaging parts of Asia, could kill as many as 150 million people.
 the bird flu virus can kill many people.
( z1 possible :ARG1 ( z2 kill :ARG0 ( z3 virus :name ( z4 name :op "bird" :op "flu" ) ) :ARG1 ( z5 person :quant ( z6 many ) ) ) )