Banning ivory is the surest road to extinction for the African elephant, argue leaders in those countries.
Leaders of those countries are aiming to prevent the elephant's extinction.
( z1 aim :ARG0 ( z2 person :ARG0-of ( z3 lead :ARG1 ( z4 country :mod ( z5 that ) ) ) ) :ARG1 ( z6 prevent :ARG0 z2 :ARG1 ( z7 extinct :domain ( z8 elephant ) ) ) )