The memorandum noted the United Nations estimated that 2.5 million to 3.5 million people died of AIDS last year.
The United Nations knows the number of people that died of AIDS last year.
( z1 know :ARG0 ( z2 organization :name ( z3 name :op "United" :op "Nations" ) ) :ARG1 ( z4 number :quant-of ( z5 person :ARG1-of ( z6 die :ARG1-of ( z7 cause :ARG0 ( z8 disease :name ( z9 name :op "AIDS" ) ) ) :time ( z10 year :mod ( z11 last ) ) ) ) ) )