Aziz confirmed that Iraq's demands include "the lifting of the blockade and the restructuring of the espionage commission, including its Chairman, (Richard) Butler.
Iraq's main demand was lifting the blocade. 
It was one of the demands but we don't know how central it was in the list of demands. 
( z1 demand :ARG0 ( z2 country :name ( z3 name :op "Iraq" ) ) :ARG1 ( z4 lift :ARG1 ( z5 blocade ) ) :mod ( z6 main ) )